ALBERT

Notes: X-ray diffraction (XRD) patterns from nominally β-SiC specimens often differ from those expected for the cubic crystal structure. These differences include the presence of additional peaks, enhanced background intensities, peak broadening, changes in relative peak heights, and shifts in peak positions. It has long been recognized that they are due to the presence of stacking faults, and models relating the experimental observations to stacking fault population have continued to evolve. The presence and relative magnitude of these features vary among different β-SiC specimens. In this work, computer simulations were used to show that the variations are closely related to differences in the type and spatial distribution of stacking faults in each specimen. In these simulations, stacking sequences were generated using a selectively activated 1-D Ising model with a Boltzmann-type probability function for specifying errors, which allows a wide variety of fault configurations to be generated. Direct correlations between different features in the XRD data to the underlying fault population are demonstrated, which are discussed in this paper. It is also shown that this computer model is general, in the sense that many of the models presented in prior work can be interpreted as limiting cases of it.

Notes: Abstract— This paper examines the application of the Jk, L and M integrals, in complex-variable form, to the Boussinesq wedge. The wedge is symmetrical and subjected to a point couple and point forces at the apex of the wedge. In the case of a point couple acting at the wedge apex the Jy, L and M integrals are found to vanish for all wedge angles whereas Jx displays a 1/r3 path-dependence; where r is a radial dimension measured from the wedge apex. When the wedge is subjected to point forces at the wedge apex then Jx and Jy are 1/r path-dependent whereas L and M are path-independent.The property that the L and M integrals are path-independent for the Boussinesq wedge is applied to the problem of determining the modes I and II stress intensity factors for a corner-loaded edge crack in a half-plane subjected to both normal and parallel point forces to the free surface of the half-plane.

Notes: Abstract— Fatigue tests were performed on thin-walled tubular specimens of S45C steel under tension-compression, pure torsion, in-phase and out-of-phase axial-torsional loadings. The relationship between cracking behaviour and stress components on the crack plane was investigated. Measurement of microcrack density showed that microcracking was governed predominantly by the shear stress amplitude acting on the crack plane for all loading conditions. The failure crack was formed by coalescence of many cracks initiated near the maximum shear planes. The cracks grew turning their orientation to the direction perpendicular to the maximum normal stress. The transition of crack orientation occurred at relatively longer crack lengths at a higher stress ratio. The crack growth behaviour for all loading modes can be correlated using an equivalent strain intensity parameter based on shear and normal strains on the crack plane.

Notes: Abstract— A ductile medium strength steel has been modelled by means of the Gurson model, and been used to investigate the effect of crack tip constraint in several fracture mechanics specimens. Both numerical and experimental results have been obtained, in the course of the crack extension process, for single edge notch bending specimens with different crack length-to-width ratios. The geometries with the shorter cracks always exhibited higher J values at initiation and steeper J crack growth resistance curves, and these results have been explained in terms of the stress and strain fields and damage development in the region ahead of the crack tip.

Notes: Abstract— It is shown that autofrettage at low temperatures is superior to autofrettage at room temperature in enhancing the fatigue resistance of thick-walled tubes against pulsating internal pressure. The physical reason is based on the well-known temperature dependence of the mechanical behaviour of metals and alloys which generally exhibit an enhancement of both the yield stress and strain hardening behaviour at lower temperatures. As a consequence, significantly larger compressive residual hoop stresses can be introduced during pressurization at low temperatures than at room temperature. Experimental data obtained on thick-walled tubes of the metastable austenitic stainless steel AISI 304 L which were subjected to pulsating internal pressure at room temperature after autofrettage at temperatures between-110°C and room temperature are presented. These data demonstrate convincingly the advantages offered by low-temperature autofrettage in enhancing both the fatigue life in the finite-life region and the fatigue endurance limit in comparison with autofrettage at room temperature. In conclusion, some specific materials requirements for optimum low-temperature autofrettage performance are discussed.

Notes: Abstract— A new single-specimen testing method, the normalization method with the so-called LMN calibration function, based on the load separation principle and function calibrations from an individual test record, was used to construct J-R curves directly from load versus load-line displacement records without any additional on-line crack-length monitoring equipment. The research was done on CT-specimens of a glassy polymer PVC at different crosshead speeds ranging from 0.01 to 50 mm/min. The J-R curves evaluated from the normalization method are in good agreement with those from the conventional multiple-specimen testing method in the whole range of the tested crosshead speeds. The results demonstrated the applicability of the normalization method for developing J-R curves at different crosshead speeds in PVC. The crack initiation J-integral values, J0.2, showed a two-regime dependence on the crosshead speeds in the tested crosshead speed range.

Notes: Abstract— Biaxial fatigue tests were conducted on a high strength spring steel using hour-glass shaped smooth specimens. Four types of loading system were employed, i.e. (a) fully reversed cyclic torsion, (b) uniaxial push—pull, (c) fully reversed torsion with a superimposed axial static tension or compression stress, and (d) uniaxial push—pull with a superimposed static torque, to evaluate the effects of mean stress on the cyclic stress—strain response and short fatigue crack growth behaviour. Experimental results indicate that a biaxial mean stress has no apparent influence on the stress—strain response in torsion, however a superimposed tensile mean stress was detrimental to torsional fatigue strength. Similarly a superimposed static shear stress reduced the push—pull fatigue lifetime. A compressive mean stress was seen to be beneficial to torsion fatigue life. The role of mean stress on fatigue lifetime, under mixed mode loading, was investigated through experimental observations and theoretical analyses of short crack initiation and propagation. Using a plastic replication technique the effects of biaxial mean stress on both Stage I (mode II) and Stage II (mode I) short cracks were evaluated and analysed in detail. A two stage biaxial short fatigue crack growth model incorporating the influence of mean stress was subsequently developed and applied to correlate data of crack growth rate and fatigue life.

Notes: Abstract— The development of fatigue damage in Co45Ni specimens during push—pull and reversed torsion tests, performed inside a scanning electron microscope, was observed and the different stress states compared. It appeared that transgranular crack initiation and development is delayed and intergranular crack initiation promoted under torsional loading. This was explained in terms of reduced surface distortion at the emergence of persistent slip bands (PSBs) and smaller compatibility stresses at the PSB-matrix interfaces. The influence of the mechanical strength of grain boundaries on the difference between tensile and torsional fatigue lives is discussed.

Notes: Abstract— A Fourier series approach is proposed to calculate stress intensity factors using weight functions for semi-elliptical surface cracks in flat plates subjected to two-dimensional stress distributions. The weight functions were derived from reference stress intensity factors obtained by three-dimensional finite element analyses. The close form weight functions derived are suitable for the calculation of stress intensity factors for semi-elliptical surface cracks in flat plates under two-dimensional stress distributions with the crack aspect ratio in the range of 0.1 ≤a/c≤ 1 and relative depth in the range of 0 ≤a/t≤ 0.8. Solutions were verified using several two-dimensional non-linear stress distributions; the maximum difference being 6%.

Notes: Abstract— A conventional finite element method may show a weakness when determining the hot spot stress distributions in the brace/chord intersection region of offshore tubular joints. This is because the chosen element displacement functions do not implicitly satisfy the conditions which prevail on the free surfaces. A procedure has been proposed to modify the conventional finite element method so as to allow the hot spot stresses, which occur at the free boundary of the weld toe of tubular joints, to be determined with improved accuracy. The results obtained by this modified method are compared with both an experimental and a traditional finite element solution. The comparison shows that the modified solution is in better agreement with the experimental data as compared with the traditional solution.

Notes: Abstract— Simple extensions to the standard deep notch bend test procedure are suggested to allow the collection of data relevant to the energy dissipation rate, D, crack opening angle, COA, and J, all for arbitrarily large amounts of growth in extensive plasticity. The methods of analysis are detailed for real elastic-plastic behaviour of a high strength low-hardening type metal with a view to encouraging use on a wider range of materials. A proposal is made, and equations given, that the particular version of J used for an R-curve derived from the area under the loading diagram, should correspond to the value of the far-field integral, Jff.The relationship between the global measure of COA that emerges from D and the local crack tip opening angle, CTOA, as used in computational studies, is established. Transferability of CTOA data is examined in the light of effects of size and configuration. An explicit rule of the form CTOA √G =f (material and configuration) is proposed for the modelling of ductile growth in finite element studies. It is applied to a set of data in the literature, for the variation of CTOA with size in the deep notch bend test and for the configurations, bending, double edge and centre cracked tension.

Notes: Abstract— In this investigation the Electron Channelling Contrast (ECC) technique in scanning electron microscopy (SEM) was applied to reveal the dislocation structures in the vicinity of surface fatigue cracks in comparison to those of cyclically-deformed recrystallized polycrystalline copper. The plastic zone around a fatigue crack was found to consist of an innermost region containing cells, followed by a region containing dense veins and PSBs, surrounded by a structure of loose veins, bundles and loop patches typical of the cyclically deformed matrix. A relation between plastic strain amplitude values deduced from cyclic stress-strain investigations and the dislocation structures near fatigue cracks are given. Typical regions of damage accumulation were identified and plastic strain contours for surface fatigue cracks established. The essentially non-destructive ECC technique is particularly suited to identify the changes in mesoscopic dislocation structures from surface layers to the interior of specimens over large specimen areas.

Notes: Abstract— The propagation behaviour of fatigue cracks emanating from pre-cracks was numerically simulated to evaluate the development of crack closure with crack growth. The crack opening stress intensity factor at the threshold was approximated as a function of the applied stress and the amount of crack extension. Pre-cracked specimens of a medium-carbon steel with a small surface crack and a single-edge crack were fatigued to investigate experimentally the initiation and propagation of cracks from pre-cracks. Crack closure was dynamically measured by using an interferometric strain/displacement gauge. The threshold condition of crack initiation from pre-cracks was given by a constant value of the effective stress intensity range which was equal to the threshold value for long cracks. The cyclic R-curve was constructed in terms of the threshold value of the maximum stress intensity factor as a function of crack extension approximated on the basis of the experimental and numerical results. The cyclic R-curve method was used to predict the fatigue thresholds of pre-cracked specimens. The predicted values of the fatigue limits for crack initiation and fracture, and the length of non-propagating cracks agreed very well with the experimental results.

Notes: Abstract— A basic study was performed on the evolution of three-dimensional shapes of small surface fatigue cracks during fatigue, and the effect of this evolution on small-crack growth behavior of a titanium-base alloy. Specifically, the nature and the magnitude of variations in crack aspect ratio, a/c (a is the crack depth and c is the half-surface crack length), during cyclic crack growth and its impact on growth rates have been studied. Experiments were performed on naturally initiated micro-cracks in a microstructure consisting of equiaxed primary-α2 phase in a Widmanstätten (transformed β) matrix. Several cracks under stress ratio (R) levels of 0.1 and −1, were studied. A specialized experimental system, consisting of a laser interferometer (to measure precisely the small-crack surface displacements), and a photo microscope (to automatically and continuously photograph the fatigue micro-cracks) was employed in the study. Apparent aspect ratios of surface cracks were calculated from the compliance response and the surface crack length data as a function of fatigue cycles. These data enabled accurate calculations of growth rates at the surface crack tip as well as the tip at depth in the bulk over the entire crack growth period, thus giving an insight into the crack growth process. Measurements of closure levels of small cracks were also performed and were used to partly account for the differences in growth rates. In the comparisons of small-crack growth data with the large-crack data, surface growth rates correlated relatively well with the large-crack data. Growth rates at depth exhibited large variations due to the irregularity of crack fronts at this location, and these rates deviated significantly from the large-crack behavior. Additionally, these growth rates varied between different cracks. An attempt was made to rationalize these observations in terms of the effects of inhomogeneities present in the microstructure.

Notes: Abstract— A new technique, known as crack modelling, is used here to predict fatigue failure in a crankshaft component. The technique uses a linear elastic finite element (FE) analysis to derive a stress intensity factor (K) for the component under load. The novel feature of the technique is that K is calculated without introducing a crack into a component; the stress field around the maximum stress point is examined and compared to that for a standard centre-cracked plate. The fatigue limit for a crankshaft was successfully predicted, when compared to experimental data. The only material parameter required for this prediction was the threshold stress intensity range, ΔKth.

Notes: Abstract— The effects of bluing, associated with drawing strain, on the fatigue strength of eutectoid steel wires have been investigated. The fatigue limit increases by bluing and the increase is more significant with higher drawing strain. The peak in the fatigue limit with regard to the drawing strain in the wires, at a strain of 2.5, disappears after bluing. On the other hand, in the ferritic steel wires investigated for comparison, the fatigue limit gradually increases with the drawing strain up to 7.7. Furthermore, no appreciable change in the fatigue limit due to bluing is found. Based on the results of hardness tests on fatigue specimens with- and without-bluing, it is deduced that the decrease of the fatigue limit beyond the peak drawing strain in the eutectoid steel wire can partly be attributed to insufficient locking of the high-density dislocations by solute atoms. The effect of relaxation of residual stress during bluing is also briefly discussed.

Notes: Abstract— It is well known that for very short cracks the stress intensity factor K is not a suitable parameter to estimate the stress level over the small but finite Stage II process zone activation region of size rs near the crack tip, within which crack growth events take place. A critical appreciation of the reasons for the limitations on the applicability of ΔK as a fatigue crack propagation (FCP) parameter, when the crack length a is of the same order of magnitude or smaller than the size of the ‘fatigue-fracture activation region’, rs is presented. As an alternative to ΔK the range Δσs of the cyclic normal stress at a point situated at the fixed distance s=rs/2, ahead of the crack tip, inside the fatigue-fracture activation region, is proposed. It is observed that the limitation on the use of ΔK when the crack is short, is mathematical (and not physical) but this inconvenience is easily circumvented if the stress Δσs at the prescribed distance is used instead of ΔK since nowadays Δσs can be obtained numerically by using finite element methods (FEM). It follows that the parameter Δσs is not restricted by the mathematical limitations on ΔK and so it would seem that there is, a priori, no reason why the validity of the parameter Δσs cannot be extended to short cracks. It is shown that if the Paris law is expressed in terms of Δσs (πrrs)½ instead of ΔK the validity of the modified Paris law can be extended to short cracks.A coherent estimate of the value of the fatigue-fracture activation region rs is derived in terms of the fatigue limit ΔσFL obtained from S-N tests and of the threshold value ΔKth obtained from tests on long cracks where both relate to Stage II crack growth that ends in failure, namely, rs= (ΔKth/ΔσFL)2/π. An overall, threshold diagram is presented based on the simple criterion that, for sustained Stage II FCP, Δσs must be greater than ΔσFL. The study is based on a simple continuum mechanics approach and its purpose is the investigation of the suitability of both ΔK and Δσs to characterise the crack driving force that activates complex fracture processes at the microstructure's scale. The investigation pertains to conditions that lead to the ultimate failure of the component at values of Δσs 〉 ΔσFL.

Notes: Abstract— The boundary value problem for an arbitrarily shaped plane crack embedded in a 3D linear elastic solid can be reduced to a governing hyper-singular integral equation. A discretizing procedure based on a triangulation of the crack area has been offered in Part I of this work. The main goal of Part I is to introduce the analytical results for the 18 resulting finite-part integrals defined over a triangular mesh area. The finite-part integrals occur in those triangles where the source point coincides with one of the element nodes. Mostly the source point lies outside of the considered triangle. In these cases the occurring area integrals are regular.The aim of Part II is, therefore, the derivation of the closed form expressions for the relevant 18 regular area integrals. The resulting relations are of algebraic form which can easily be coded in compact form. Their numerical proof by two different methods shows the highest accuracy and, therefore, the correctness of the final solutions. The relevant numerical results are offered in Appendix I.With the formulae provided in Part I and Part II of the paper the determination of the coefficient matrix, necessary for the calculation of COD values from a linear equation system, is precise and needs only minimum computer time.

Notes: Abstract— Circumferentially notched cylindrical specimens are tested in torsion to obtain critical J values from crack resistance curves. The specimens are explosion cladded, half ferrite, half austenite, with the interface perpendicular to the cylinder axis and the circumferential notch at, or parallel to, the interface. Critical J values for crack extension in mode III were found to be a factor 1.1 to 2.1 higher than under comparable mode I loading.

Notes: Abstract— Strength measurements are becoming increasingly important for electroceramics. Bending of specimens small enough to be cut out of small electroceramic components may be one possibility. Therefore the miniaturisation of the 4-point bend-test for ceramic specimens is now being attempted. In this paper the errors in determining the flexural strength arising from the test principle itself, plus the geometry and measuring inaccuracies are calculated and expressed as a function of the outer span length. Contact pressure and a tolerable total measuring inaccuracy determines the dimensions of miniature specimens and fixtures. The possibilities of appropriate specimen preparation are also investigated.Ceramic materials show a volume (i.e. a specimen size) dependence of strength which is described by Weibull's statistical theory. The applicability of the miniature bend-fixtures is demonstrated by measuring this volume effect.

Notes: Abstract— This paper describes a versatile technique for simulating the fatigue growth of a wide range of planar cracks of practical significance. Crack growth is predicted on a step-by-step basis from the Paris law using stress intensity factors calculated by the finite element method. The crack front is defined by a cubic spline curve from a set of nodes. Both the 1/4-node crack opening displacement and the three-dimensional J-integral (energy release rate) methods are used to calculate the stress intensity factors. Automatic remeshing of the finite element model to a new position which defines the new crack front enables the crack propagation to be followed. The accuracy and capability of this finite element simulation technique are demonstrated in this paper by the investigation of various problems of both theoretical and practical interest. These include the shape growth trend of an embedded initially penny-shaped defect and an embedded initially elliptical defect in an infinite body, the growth of a semi-elliptical surface crack in a finite thickness plate under tension and bending, the propagation of an internal crack in a round bar and the shape change of an external surface crack in a pressure vessel.

Notes: Abstract— Cold-expansion of fastener holes is now commonly used within the aerospace industry to increase the fatigue endurance of airframes. Although a number of methods of cold expansion are possible, the split-sleeve cold-expansion process is the most widely accepted and is frequently used in the repair and manufacture stages of both military and civil aircraft. In the present work, the redistribution of residual hoop stresses due to the application of constant amplitude fatigue loading at 4% cold-expanded holes has been studied. A modified Sachs method was adopted to evaluate the residual stress profiles and a replication technique was used to quantify crack growth. It was found that the decay of the residual hoop stress profile near the bore of the hole was due to the initiation and growth of small fatigue cracks. Cracks were found to initiate both near and below the fatigue limit, but subsequently arrested so stabilising the overall residual stress profile.

Notes: Abstract— The factors affecting the fatigue strength of nitrided titanium were clarified. The fatigue strength depended strongly on the fracture strength of the compound layer formed on the surface by nitriding. We found a Hall-Petch relationship between the fatigue strength of nitrided titanium and the grain size. The findings indicated that the reduction in the fatigue strength by nitriding results from both the formation of the compound layer possessing low fracture strength and grain growth occurring from ordinary nitriding. Furthermore, low-temperature nitriding (620°C, 24 h) was proposed to suppress grain growth. This treatment method improved not only the wear resistance and the corrosion resistance but also the fatigue strength of titanium.

Notes: The paper defines entrepreneurship as about ‘self-competition’, the quest to test self-ability: Can a future self achieve greater goals than what has been so far achieved? Self-competition involves the development of ability and, hence, ex post assessment of ability is uncertain. Such uncertainty occasions either immobilizing anxiety (Buridan's ass) or entrepreneurial action. No such uncertainty surrounds the assessment of risk probability characterizing events such as floods and stock market crashes. An observable prediction of the proposed uncertainty/risk dichotomy is that insurance, which concerns risk, cannot crowd out religion and other belief systems which appeal to uncertainty.〈section xml:id="abs1-2"〉〈title type="main"〉ZUSAMMENFASSUNGIn diesem Papier wird Unternehmertum im Sinne von ‘Selbst-Konkurrenz’ deftniert, als Streben, die eigenen Fähigkeiten unter Beweis zu stellen: Kann das zukünftige Ich höhere Ziele als bisher erreichen?Selbst-Konkurrenz beinhaltet die Entwicklung von Fähigkeiten, und daher ist deren ex post Einschätzung unsicher. Diese Unsicherheit führt entweder zu einer lähmenden Angst (Burdians Esel) oder zu unternehmerischer Aktivität. Im Gegensatz dazu ist die Einschätzung der Risikowahrscheinlichkeit von Überschwemmungen oder Kursschwankungen an der Börse nicht von einer solchen Unsicherheit geprägt. Als beobachtbare Voraussage aus der vorgeschlagenen Unsicher-heit/Risiko-Dichotomie heraus ergibt sich, dass eine dieses Risiko betreffende Versicherung nicht in der Lage ist, Religion und andere Glaubenssysteme, die sich auf Unsicherheit bezichen, zu verdrängen.〈section xml:id="abs1-3"〉〈title type="main"〉RÉSUMÉCe papier définit ľesprit entrepreneur comrne ‘une concurrence de soi’, la quete d'éprouver la capacityé de soi: Est-ce possible qu'un futur-soi puisse achever de plus grands buts qu'il a déjà accomplis? Une concurrence de soi consiste du développcinent de sa capacityé, done, ľévaluation ex past de cette capacityé n'est pas certaine.Une telle incertitude mène à une anxiété paralysante (ľǎne de Buridan) ou àľ action entreprenante. Une incertitude de la sorte n'entoure pas ľévaluation de la probabilityé de risque qui caractérisent les événements tels comme ľ inondation ou la chute de la Bourse. Une prédiction qu'on petit observer de la dichotomie proposée incertitude/risque, c'est que ľ assurance, qui concerne le risque, doit laisser de place aux réligions et aux autres systèmes de croyance qui invoquent ľ incertitude.

Notes: The paper results from interviews held among economists from Central and Eastern Europe. It tries to get an inside view on the profession under communist rule. As expected, the results depend upon period and country under analysis. Poland and Hungary did not lose contact with Western developments, while the Soviet Union and the GDR and also Czechoslovakia after 1968 isolated themselves completely. In Russia there was an own development in the sphere of optimal planning theory. In the GDR strict political control and adherence to dogmatism led to sterility. Reform thinking became stronger in the 1980s, with the exception of the GDR and Russia. The results are corroborated by the personal situation of the individual economist. Asked where they see the lasting contribution of economics under communism, most respondents are rather pessimistic: it is more the abortive practice of Soviet-type central planning which taught a lesson than the theoretical developments of the period.〈section xml:id="abs1-2"〉〈title type="main"〉ZUSAMMENFASSUNGDie Studie ist das Ergebnis von Interviews, die unter Wirtschaftswissenschaftlern aus Mittel- und Osteuropa gehalten wurden. Sie sucht einen Blick von innen auf die Entwicklung einer Wissenschaft unter kommunistischer Herrschaft zu gewinnen. Das Resultat hängt von der jeweiligen Periode und dem jeweiligen Land ab. Polen und Ungarn haben den Kontakt zum Westen nicht verloren. Russland und die DDR, ebenso die CSSR nach 1968, haben sich dagegen vollständig isoliert. Russland kannte eine eigene Entwicklung in der Planungstheorie. In der DDR führten dagegen politische Kontrolle und Dogmatismus zur Sterilität. Mit Ausnahme dieserbeiden Länder wuchs das Reformdenken in den 80er Jahren stetig an. Die Ergebnisse spiegeln sich auch in der persönlichen Situation der einzelnen Wissenschaftler wider. Nach dem bleibenden Beitrag der Ökonomie unter dem Kommunismus befragt, zeigen sich die Antworten eher pessimistisch: nicht die theoretischen Errungenschaften der Periode sind lehrreich, vielmehr aber das abschreckende Beispiel des sowjetischen Zentralplansystems.〈section xml:id="abs1-3"〉〈title type="main"〉RÉSUMÉL' article rend compte des résultats d'interviews réalisés auprès d'économistes des pays de l'Europe Centrale et Orientale. II présente une vision de l'intérieur sur le développement de la science économique sous le régime communiste. Les résultats dépendent de la période et du pays analyses. La Pologne et la Hongrie n'ont jamais perdu le contact avec la science économique occidentale, tandis que la Russie, l'Allemagne de l'Est et, après 1968, la Tchécoslovaquie s'en sont isolés complètement. Avec la théorie de la planification optimale, la Russie a connu son propre développement. En RDA, le contrǒle politique et le dogmatisme ont abouti à une stérilité théorique. À l'éxception de ces deux derniers pays, la pensée réformiste s'est renforcée continument au cours des années 80. Ces résultats se reflètent aussi dans la situation personnelle faite aux économistes. Quant a la contribution durable de la science économique sous le communisme, les réponses sont peu optimistes: ce ne sont pas tellement les développements théoriques qui survivront à la periode soviétique, mais plutöt (‘experience avortée de la planification centrale de type soviétique.

Notes: This paper presents the results of an overlapping-generations experiment on the individual choice between intergenerational transfers and savings. One dominant finding of our experiment is that if savings are possible individuals choose to (gradually) opt out of the intergenerational transfer system. In that case the average individual pay-offs are lower but their distribution among individuals is less volatile. This suggests that risk aversion is a driving force behind the decline of intergenerational transfers. The willingness to give to previous generations does not disappear completely, however. Moreover, the degree of cohesion between successive generations, measured by (lie correlation between current and past transfers does not diminish significantly after the introduction of (he savings option.〈section xml:id="abs1-2"〉〈title type="main"〉ZUSAMMIENEASSUNGDicser Artikcl präsentierl die ErgebnisseeinesOvcrlapping-Generations-Experitnents, indent sich die Tcilnehmer zwisehen tnlergenerationalcn Transfers und Sparen entscheiden mussten. Eines der Hauptergcbnisse besteht darin, dass die Einführung der Mögliehkeit zur individuellen Zukunfts-vorsorge durch Sparen zu einer (allmählichen) Zurückdrängung von intergencrationalen Transfers führt. Im Fall des Sparens isl die durehschnittliche individuclle Auszahlung zwar geringer, dafür aber weniger unsieher. Die Zurückdrangung intergenerationaler Transfers lässt sich dahcr durch Risikoaversion erklären. Dennoch verschwindct die Bereitschaft, an die vorausgehende Generation abzugeben, nicht völlig. Ausserdein vennindert sich die Stärke des Zusatnnienhalts zwisehen aufcinanderlolgcnden Generalionen, getnessen durch die Korrelation zwisehen gegenwärtigen und früheren Transfers, nicht wesentlich durch die Einführung der Mögliehkeit des Sparens.〈section xml:id="abs1-3"〉〈title type="main"〉RÉSUMÉLe papier présente des résultats expérimentaux sur les choix individuels entre transferts inter-génération et épargnc. Un des résultats principaux est que s'il est possible d'épargncr, alors (progressivement) les agents passent du système de transfer! inter-générationnelausystème d'épargne. Dans de cas le payoff moyen des agents est plus faible mais la distribution des payoffs est inoins volatile. Ceei suggère que l'aversion pour le risque est l'une des prineipales causes du déclin des transferts intergénération. Cependant, les transferts inter-génération ne disparaissent pas totalement. De plus, le degré de cohesion entre les génération successives, mesuré par la corrélation entre les transferts présents et passés, ne diminue pas significativemenl apres l'introduction de la possibilityé d'épargncr.

Notes: This paper investigates spatial disparities in unemployment in three Member States of the EU. It attempts to identify the factors responsible for the persistence of regional unemployment disparities in Germany, Italy and the UK during 1984-94. The empirical results indicate that a substantial proportion of the variation in unemployment rates between NUTS2 level regions can be explained by regional disparities in three key variables: unit labour costs, the industry mix and employment density. The findings are consistent with the view that regional unemployment disparities are explained primarily by regional disparities in economic competitiveness.〈section xml:id="abs1-2"〉〈title type="main"〉ZUSAMMENFASSUNODieser Artikel untersucht die räumlichen Unterschiede in der Höhe der Arbeitslosigkeit in drei Mitgliedsstaaten der EU. Er basiert auf dem Versuch, die Faktoren zu bestimmen, die im Zeitraum zwischen 1984 und 1994 für die Persistenz von regionalen Unterschieden der Höhe der Arbeitslosigkeit in Deutschland, Italien und Grossbritannien verantwortlich waren. Die empirischen Ergeb-nisse zeigen, dass ein wesentlicher Teil der Unterschiede in der Höhe der Arbeitslosigkeit zwischen NUTS2 Regionen durch eine regional unterschiedliche Ausprägung von drei wichtigen Variablen erklärt werden kann: Lohnstückkosten, Wirtschaftsstruktur und Zahl der Arbeitsplätze pro Quadratkilometer. Die Ergebnisse bestätigen die Ansicht, dass die regional unterschiedlich hohe Arbeitslosigkeit hauptsächlich durch Unterschiede der regionalen Wettbewerbsfähigkeit zu cr-klüren ist.〈section xml:id="abs1-3"〉〈title type="main"〉RÉSUMÉCe document examine les disparités géographiques du chǒmage dans trois États membres de l'Union Européenne. Nous essayerons d'identifier les facteurs responsables de la persistance des disparités en chǒmage régional en Ailemagne, en Italie el au Royaume-Uni pendant la période 1984-94. Les résultats empiriques indiquent qu'une proportion importante de la variation du taux de chǒmage entre les régions de la catégorie NUTS2 peut s'expliquer par des disparités régionales en trois variables prépondérantes: le coǔt unitaire d'emploi, la structure industrielle et la densité d'emploi. Les résultats coïncident avec l'avis que les disparités du chǒmage régional s'expliquent surtout par les disparités régionales en compétitivitééconomique.

Notes: Austrian business cycle policy was unconventional but rather successful in the last three decades and especially since the oil crisis. The unconventional conception was developed by trial and error, only ex post it got the name Austro-Keynesianism. Nevertheless it has a theoretical basis, a rather radical interpretation of KEYNES, which bases economic instability on a deep-rooted uncertainty of entrepreneurs. According to this interpretation economic policy tried to stabilize the data most important for entrepreneurial decisions, especially wage increase, exchange rates and investment promotion. This lightened the burden of the traditional instruments of stabilization policy. In addition these instruments were assigned differently: Exchange rate policy was primarily used to stabilize prices in the short run, incomes policy to equilibrate the current account in the medium and longer run, fiscal policy to stabilize employment. While the new assignation proved useful for stabilization policy, some structural problems remained unsolved.

Notes: In many settings, economic efficiency in law enforcement appears to require differential enforcement of the law. For example, as shown in the paper, crime prone populations warrant stronger sanctions than less crime prone populations if costly sanctions are to be meted out in an efficient manner. However, narrow economic analysis of efficient sanctions attributes an efficiency to modern democratic governments which can not be easily justified by analysis or experience. This paper demonstrates that constraining majority coalitions to write laws consistent with the principle of equal protection generally yields more desirable outcomes than obtained when majority coalitions are permitted to discriminate in an arbitrary manner. The efficiency case for equality before the law is based on political considerations rather than economic ones per se.〈section xml:id="abs1-2"〉〈title type="main"〉ZUSAMMENFASSUNGDas Kriterium der ökonomischen Effizienz bei der Durchsetzung von Recht scheint in vielen Situationen eine differenzierende Durchsetzung des Rechts zu erfordern. Wie in diesem Artikel ge-zeigt werden kann, können beispielsweise für mehr zu Verbrechen neigende Bevölkerungsteile härtere Strafen gerechtfertigt sein, als für weniger zu Verbrechen neigende Bevölkerungsteile, wenn die mit hohen Kosten verbundene Bestrafung von Verbrechen effizient eingesetzt werden soil. Allerdings schreibt die ökonomische Analyse von effzienten Strafen modernen demokratischen Regierungen eine Effizienz zu, die durch Analyse oder Erfahrung nur schwer zu bestätigen ist. Dieses Papier zeigt nämlich, dass wünschenswertere Ergebnisse zu erzielen sind, wenn man Mehrheitskoalitionen dazu zwingt, Gesetze zu schreiben, die mit dem Prinzip der Gleichheit vor dem Gesetz übereinstimmen, als wenn man Mehrheitskoalitionen erlaubt, auf willkürliche Weise zu diskriminieren. Im Ergebnis lasst sich daher feststellen, dass die Effizienzargumente im Hinblick auf die Gleichheit bzw. Ungleicheit vor dem Gesetz lediglich auf politischen Überlegungen beruhen, aber nicht auf ökonomischen.〈section xml:id="abs1-3"〉〈title type="main"〉RÉSUMÉDans beaucoup de situations, l'éfficience économique de l'application de la loi semble exiger une application différenciée. Par exemple, comme il est expliqué dans l'article, des lois plus restrictives peuvent ětre appliqués pour une partie de la population étant plus incliné a la criminalité que pour des parties moins inclinées, si les coǔts élevés de l'application de la loi doivent ětre utilisés avec éfficience. Pourtant, l'analyse économique sur la punition éfficiente attribue aux gouvernements démocratiques modernes une éfficience qui ne peut pas ětre justifyé aisément par l'analyse et l'expérience. Cet article montre que des résultats meilleures peuvent ětre atteints si des coalitions majoritaires peuvent ětre contraintes à concevoir des lois qui sont consistents avec le principe de la protection égale devant la loi, que si une coalition majoritaire permet de discriminer une partie de la population de manière arbitraire. L'éfficience du principe de l'égalité devant la loi est basé sur des considérations politiques, et non sur des considérations économiques.

Notes: Argy, Victor and Leslie Stein (1997). The Japanese Economy. Basingsto-ke/London: Macmillan. 379 pp. £47.50. ISBN 0-333-6756-5. £17.50. ISBN 0-333-67566-5.Balasubramanyam, V. N. and D. Greenaway (eds.) (1996). Trade and Development. Essays in Honour of Jagdish Bhagwati. Basingstoke/London: Macmillan. 217 pp. £45.00. ISBN 0-333-65616-4.Blejer, Mario I. and Teresa Ter-Minassian (eds.) (1997). Macroeconomic Dimensions of Public Finance. Essays in Honour of Vito Tanzi. London/New York: Routledge. 506 pp. £65.00. ISBN 0-415-14111-7.Blejer, Mario I. and Teresa Ter-Minassian (eds.) (1997). Fiscal Policy and Economic Reform. Essays in Honour of Vito Tanzi. London/New York: Rout-ledge. 305 pp. £60.00. ISBN 0-415-13739-X.Brömmelhörster, Jörn and John Frankenstein (eds.) (1997). Mixed Motives, Uncertain Outcomes. Defense Conversion in China. Boulder: Lynne Rienner Publishers. 275 pp. $ 55.00. ISBN 1-555-87710-9.Constanza, Robert, Charles Perrings and Cutler J. Cleveland (eds.) (1997). The Development of Ecological Economics. Cheltenham, UK/Brookfield, USA: Edward Elgar. 777 pp. £160.00. ISBN 1-85898-386-X.Craig, Lee A. and Douglas Fisher (1997). The Integration of the European Economy, 1850-1913. Basingstoke/London: MacMillan Press. 327 pp. ISBN 0-333-58036-2.Davies, Stephen and Bruce Lyons (1996). Industrial Organization in the European Union. Structure, Strategy and the Competitive Mechanism. Oxford: Clarendon Press. 287 pp. £40.00. ISBN 0-19-828973-1.Fratianni, Michele and Franco Spinelli (1997). A Monetary History of Italy. Cambridge: Cambridge University Press. 305 pp. £40.00. ISBN 0-521 -44315-6.Gandolfo, Giancarlo (1996). Economic Dynamics, 3rd ed. Berlin/Heidelberg/New York/London: Springer. 610 pp. DM 178.-. ISBN 3-540-60988-1.Garfinkel, Michelle R. and Stergios Skaperdas (eds.) (1996). The Political Economy of Conflict and Appropriation. Cambridge/New York/Melbourne: Cambridge University Press. 182 pp. $ 49.95. ISBN 0-521-56063-2.Kemp, René (1997). Environmental Policy and Technical Change. A Comparison of the Technological Impact of Policy Instruments. Cheltenham, UK/Brookfield, USA: Edward Elgar. 360 pp. £55.00. ISBN 1-85898-506-4.Klamer, Arjo (ed.) (1996). The Value of Culture. On the Relationship between Economics and Arts. Amsterdam: Amsterdam University Press. 243 pp. £21.95. ISBN 90-5356-218-4.Llau, Pierre (1996). Economie financeère publique. Paris: Presses Universitai-res de France. 546 pp. 168 FF. ISBN 2-13-047774-7.Mueller, Dennis C. (ed.) (1997). Perspectives on Public Choice. A Handbook. Cambridge: Cambridge University Press. 672 pp. $79.95. ISBN 0-521-55377-6 (he.). $ 29.95. ISBN 0-521-55654-6 (pbk.).Pritzl, Rupert F.J. (1997). Korruption und Rent-Seeking in Lateinamerika. Zur Politischen Ökonomie autoritärer politischer Systeme. Baden-Baden: Nomos. 318 S. ISBN 3-7890-4692-2.Schmidt-Trenz, Hans-Jörg (1996). Die Logikkollektiven Handelns bei Delegation. Tübingen: J.C.B. Mohr (Paul Siebeck). 293 S. ISBN 3-16-146607-1.Xepapadeas, Anastasios (ed.) (1996). Economic Policy for the Environment and Natural Resources. Techniques for the management and Control of Pollution. Cheltenham, UK/Brookfield, USA: Edward Elgar. 245 pp. £59.95. ISBN 1-85898-413-0.

Notes: After overall entry deregulation, regulation of market power can only be justified in local telecommunication networks as long as they constitute monopolistic bottlenecks. Technical progress leads to a gradual disappearance of monopolistic bottlenecks, pointing out the large potential for economically efficient phasing out of sector-specific regulation. In contrast, all forms of asymmetric regulation containing an intrinsic bias towards some firms or technologies have a strong tendency towards overregulation. The new telecommunications laws in Germany and Switzerland are shown to be prominent examples of asymmetric regulatory frameworks. Since the new telecommunications law in Switzerland is less restrictive and more transparant than its German counterpart, it seems to be more suitable to tackle the potential for phasing out sector specific regulation in telecommunications.〈section xml:id="abs1-2"〉〈title type="main"〉ZUSAMMENFASSUNGNach einer umfassenden Marktoffnung ist eine Marktmachtregulierung in der Zukunft lediglich noch in Ortsnetzen gerechtfertigt, solange diese monopolistische Engpassbereiche darstellen. Der technische Fortschritt in Ortsnetzen führt allerdings allmahlich zu einer Auflösung dieser Engpassbereiche und schafft dadurch ein zunehmendes Potential für die Abschaffung sektorspezifischer Regulierungseingriffe. Demgegenüber beinhalten alle Formen asymmetrischer Regulierung eine immanente Verzerrung zugunsten spezieller Firmen oder Technologien und damit einhergehend eine starke Tendenz zur Uberregulierung. Die neuen Telekommunikationsgesetze in Deutschland und in der Schweiz stellen bedeutende Beispiele für asymmetrische Regulierungsrahmen dar. Allerdings erweist sich das neue schweizerische Telekommunikationsgesetz als weniger restriktiv und transparenter als sein deutsches Gegenstück. Es ist daher zu erwarten, daß das zunehmende Potential für ein ‘phasing out' sektorspezifischer Regulierungseingriffe in der Schweiz rascher ausgeschöpft wird als in Deutschland.〈section xml:id="abs1-3"〉〈title type="main"〉RÉSUMÉA près une ouverture entière du marché de télécommunication une régularisation de la domination du marché ne sera justifiée à l'avenir que dans les réseaux locaux aussi longtemps qu'ils constituent des goulots d'étranglement monopolistiques. Le progrès technique dans les réseaux locaux mène peu à peu à la disparition des ces goulots détranglement en créant ainsi un potentiel croissant de suppression de la régularisation sécteur-spécifique. Par contre, toutes les formes de régularisation asymétrique contenant une distorsion immanente au profit de certaines firmes ou de certaines technologies ont une forte tendance à la sur-régularisation. Les nouvelles lois de télécommunication en Allemagne et en Suisse sont des exemples importants d'encadrements asymétriques de régularisation. Cependant, la nouvelle lot de télécommunication suisse se montre moins restrictive et plus transparente que la loi respective en Allemagne. Par conséquent, l'on peut s'attendre à ce que le potentiel croissant de suppression de régularisations sécteur-spécifiques sera épuisé plus vite en Suisse qu'en Allemagne.

Notes: Tax evasion has been mainly studied as a problem of choice under uncertainty; like any portfolio manager, the taxpayer has to allocate her/his fixed gross income between two assets a risky asset, tax evasion, and a safe asset (with a zero return), tax payment. As suggested by the portfolio theory, the taxpayer's choice will be affected by her/his preferences — mainly by her/his attitude towards risk-taking — and by the return on the risky asset determined by the tax structure, which includes both the tax rate and the penalties in the case of evasion However, the pure gamble model appears unsatisfactory on various grounds. Among these and most importantly for our purpose, it neglects the psychological aspects of the decision to evade tax because it rules out any feeling of shame about evading or being detected and punished, and it ignores any intrinsic pleasure from successful evasion In other words, the pure gamble model does not take full account of the moral constraints involved in the tax evasion decision. The main objective of the experiment presented here was therefore to investigate the role played by moral constraints in determining the decision to evade taxes. The experimental evidence supports the thesis that the taxpayer's decisional process involves not only monetary elements but also psychological and moral factors.〈section xml:id="abs1-2"〉〈title type="main"〉ZUSAMMENFASSUNGDie Steuerhinterziehung wurde bisher überwiegend als Problem von Entscheidungen unter Unsicherheit untersucht Wie jeder Portfoliomanager muss auch der Steuerzahler sein Bruttoeinkommen zwischen zwei Anlageformen verteilen eine risikoreiche Anlageform. Steuerhinterziehung, und eine sichere Anlageform (ohne Gewinn), Steuerzahlung. Nach der Portfoliotheorie wird die Entscheidung des Steuerzahlers von seinen Praferenzen beeinflusst — vor allem von seiner Risiko-bereitschaft — und von der Gewinnaussicht der risikoreichen Anlageform, die vom Steuersystem abhangt, d.h. vom Steuersatz und den Strafen bei Steuerhinterziehung. Dieses Lotteriemodell ist jedoch aus mehreren Grunden unbefriedigend: es vernachlässigt die psycholgischen Aspekte der Steuerhinterziehung, weil es jegliches Schamgefühl bei der Steuerhinterziehung bzw. der Entdeckung und Bestrafung ausschliesst und ein intrinsisches Vergnugen bei erfolgreicher Steuerhinterziehung ignoriert. Das Lotteriemodell zieht also nicht in Betracht, dass moralische Restriktionen die Entscheidung zur Steuerhinterziehung beeinflussen konnten Das hier vorgestellte Experiment wollte daher in erster Linie untersuchen, welche Rolle moralische Restriktionen bei der Entscheidung zur Steuerhinterziehung spielen. Die Ergebnisse des Experiments bestatigen die Hypothese, dass der Entscheidungsprozess des Steuerzahlers nicht nur durch monetare Elemente beeinflusst wird, sondern auch durch psychologische und moralische Faktoren.〈section xml:id="abs1-3"〉〈title type="main"〉RÉSUMÉL'évasion fiscale a été principalement étudiée en tant qu'un problème de choix dans des conditions d'incertitude, comme n'importe quel gestionnaire de portfolio, le contribuable doit répartir son revenu brut fixe entre deux actifs un actif risqué, l'évasion fiscale, et un actif sǔr (avec un taux d'intérét zéro), le payement des taxes. Comme suggéré par la théorie du portfolio, le choix du contribuable sera affecté par ses préférences — principalement par son attitude vis-à-vis du risque — et par le bénéfice déterminé par la structure fiscale qui inclut à la fois le taux de taxation et les pénalités prévues en cas d'évasion Cependant, le modèle pur de jeu apparait insatisfaisant pour plusieurs rasisons Parmi celles-ci, le modèle néglige les aspects psychologiques de la décision, limitation spécialement importante pour notre objectif, puisqu'il écarte tout sentiment de honte associé à la découverte de l'évasion et à la punition ou encore il ignore le plaisir découlant d'une évasion fiscale réussie. En résumé, le modèle pur de jeu ne prend pas pleinement en compte les contraintes morales qui influencent la décision. L'objectif principal de l'expérimentation présentée ici était d'analyser le rǒle joué par les contraintes morales dans la prise de décision d'évasion fiscale. Les résultats confirment l'hypothèse que le processus décisionel du contribuable dépend non seulement des aspects financiers mais également des facteurs psychologiques et moraux.

Notes: This paper shows two points: (1) there is a statistically significant positive relationship between the real value of the agricultural minimum wage and the level of agricultural output in Morocco, for eight important crops; (ii) the latter may be explained using a theoretical model where the productivity of the laborers depends on their consumption level, and where wage incomes are shared among family members to fund consumption. The Nash equilibrium is then inefficient.〈section xml:id="abs1-2"〉〈title type="main"〉ZUSAMMENFASSUNGDieser Artikel zeigt zweierlei: a) Für acht Feldfnichte existiert eine statistisch sigrufikante Beziehung zwischen realem Mindestlohn und Produktionsniveau in der marokkanischen Landwirtschaft; b) Diese Beziehung lasst sich mit einem theoretischen Modell erklären. Darin hangt die Produktivitat der Arbeiter von ihrem Lebensstandard ab. Zur Konsumfinanzierung werden die Lohneinkunfte zwischen den Mitgliedern der Familie aufgeteilt. Das Nash-Gleichgeèicht ist somit ineffizient.〈section xml:id="abs1-3"〉〈title type="main"〉RÉSUMÉCet article montre deux choses: (a) il y a une relation statistiquement significative entre la valeur réelle du salaire minimum agricole et le niveau de la production agricole au Maroc, pour huit cultures importantes; (b) celle-ci peut s'expliquer au moyen d'un modèle théorique où la productivité des travailleurs dépend de leur niveau de consommation, et où les revenus salariaux sont partagés entre les membres de la famille pour financer la consommation. L'équilibre de Nash est alors inefficient.

Notes: This paper reports the results of a comparison of employment adjustment in Japan, the United States and four major EC countries. Output and real wages are used in explaining the optimal employment level and change in employment. Short- and long run responses to alterations of the exogenous variables are estimated and compared. Surprisingly, Germany has a quite rapid adjustment of labor while France and Italy show a much slower adjustment pattern. Even in comparison with the United States. Great Britain demonstrates the fastest adjustment to changes in the economic environment. By far the slowest adjustment pattern is realized in Japan. Overall the difference between the US and Europe seems not to be too large and European labor markets are not as sclerotic as occasionally assumed.〈section xml:id="abs1-2"〉〈title type="main"〉ZUSAMMENFASUNGDieser Artikel gibt die Ergebnisse eines Vergleichs der Beschäftigungsanpassung in Japan, den Vereinigten Staaten und den vier wichtigsten EU-Landern wieder. Das Produktionsniveau und der Reallohn sind die erklarenden Variablen für das optimale Beschaftigungsniveau wie auch Veranderungen der Beschäftigung. Es werden kurz- und langfnstige Beziehungen zwischen den exogenen und der endogenen Vanablen geschatzt und verglichen Uberraschenderweise hat Deutschland eine relativ rasche Beschaftigungsanpassung, während Frankreich und Italien eine viel langsamere Anpassung aufweisen. Großbntannien hat auch im Vergleich zu den USA die schnellste Reaktion auf Veränderungen der ökonomischen Umwelt. Das bei weitem inflexibelste Anpassungsverhalten wird für Japan registriert. Zusammenfassend scheinen die Unterschiede zwischen den Vereinigten Staaten und Europa nicht so groß und der europaische Arbeitsmarkt nicht so sklerotisch zu sein wie erwartet.〈section xml:id="abs1-3"〉〈title type="main"〉RÉSUMÉCet article présente les résultats d'une comparaison de la vitesse d'adaptation de l'emploi au Japon, aux Etats-Unis et dans les quatre pays les plus importants de l'UE. Le niveau de l'emploi optimal ***ainsi que les variations de l'emploi sont expliquées par le niveau de production et les salaires réels. Les variations à court et long terme des changements des variables exogènes ont été estimés et comparés. Étonnamment, l'Allemagne a une vitesse d'adaptation de l'emploi relativement rapide par rapport à celles de la France et de l'Italie. L'Angleterre montre měme, en comparaison avec les Etats-Unis, une plus grande flexibilité envers les modifications de l'environnement économique. L'adaptation la plus lente est observée au Japon. Pour conclure les différences concernant la vitesse d'adaptation de l'emploi entre les Etats-Unis et l'Europe ne semblent pas si grandes et les marchés de travail européens sont moins sclérosés que ce que l'on attendait.

Notes: Implications of inefficiency in theories of market failure reveal a flawed methodology. Behavior which is apparently inefficient is actually the symptom of an inappropriate analytical model. The standard examples of market failure, monopoly power and external effects, are forthcoming only from models which omit transactions costs as explanatory variables. The unfortunate consequence of this conclusion is that complete and appropriate economic models, which incorporate all relevant variables, will always certify any behavior as efficient. This poses the ‘Panglossian dilemma’, that whatever is, is optimal. This dilemma is resolved by an analytical approach which compares behavior under alternative economic institutions. This analysis depends on two propositions: that transactions costs are affected by alternative institutional environments; and that institutions are themselves responses to the existence of transactions costs. These propositions are used to predict behavior under alternative institutions, and to explain the long run evolution of the institutions.

Notes: Empirical evidence does not agree with the investment-model of the demand for education: out of pocket costs have another impact than earnings foregone. This difference can be explained by consumption motives. The demand for education is then greater, the full price of education exceeds discounted future incremental earnings, net discounted wealth is not maximum and the rate of return to marginal investments in education is smaller than the interest rate.

Notes: At the turn of this century WESLEY C. MITCHELL argued that the velocity of money could be influenced by a noneconomic variable that he called ‘confidence’; but the idea has received little attention since then. This study uses events in the long Vietnam war for statistically demonstrating the MITCHELL hypothesis. U. S. troop presence in South Vietnam boosted the peoples' confidence in their country's future thereby stabilizing the demand for fiat money and income velocity. Only two variables - the previous year's rate of inflation and U. S. troop strength, which serves as a proxy for battlefield victories - are needed to explain movements in velocity.

Notes: Agénor, Pierre-Richard and Peter J. Montiel (1996). Development Macroeconomics.Baldwin, John R. (1995). The Dynamics of Industrial Competition.Barnet, William A., Hervé Moulin. Maurice Salles and Norman J. Schoficld (eds.) (1995). Social Choice, Welfare, and Ethics.Benassi, Corrado, Alessandra Chirco, Caterina Colombo (1994). The New Keynesian Economics.Eatwell, John et al. (1995). Transformation and Integration.Führer, Karl Christian (1995). Mieter, Hausbesitzer, Staat und Wohnungs-markt.Haq. Mahbuh ul (1995). Reflections on Human Development.Hartwig, Karl-Hans und Ingo Pies (1995). Rationale Drogenpolitik in der Demokratie.Hausman, Daniel M. and Michael S. McPhcrson (1996). Economic Analysis and Moral Philosophy.Hufbauer, Gary Clyde, Carol Gabyzon (1996). Fundamental Tax Reform and Border Tax Adjustments.Judge, Paramjit S. (1994). A study of Formation of an Ethnic Community.Kleindorfer, Paul L., Howard C. Kunreuther and David S. Hong (eds.) (1996). Energy, Environment and the Economy.Lombardini, Siro (1996). Growth and Economic Development.Penz, Reinhard und Holger Wilkop (Hrsg.) (1996). Thorstein Veblens evoluto-rische Ökonomik.World Bank (1996). World Development Report 1996.

Notes: A discrete time, discounted utility model with a finite horizon is analyzed. Utility is separable and additive in the natural logarithms of the choice variables, consumption and leisure, and an exogenous ‘memory' series. Happiness is defined as the discounted value of the utility over the remaining lifespan. Simulations of the model show how happiness grows as the high consumption years get closer, peaks, then declines in later life as the remaining lifespan shortens, even though year by year utility may continue to rise. Simulations also show how the peak year for happiness depends on the subjective, personal discount rate, the rate of wage growth, the effect of a liquidity constraint, the effect of memories, and other parameters in the model. The model also illustrates those aspects of the life cycle characterized by the ‘slackers’, the ‘mid-life crisis’, and the ‘golden years’.〈section xml:id="abs1-2"〉〈title type="main"〉ZUSAMMENFASSUNGEin diskretes, abdiskontiertes Nutzenmodell mit einem endlichen Zeithorizont wird analysiert. Nutzen wird als zerlegbar und additiv in den natürlichen Logarithmen der Wahlvanablen Konsum und Freizeit und in den exogenen Zeitreihen für ‘Erinnerungen’ angenommen. Gluck ist definiert als abdiskontierter Wert des Nutzens der verbleibenden Lebenszeit. Simulationen zeigen, wie das Glück bei der Annäherung an die Jahre erhöhten Konsums ansteigt, einen Hohepunkt erreicht, um dann in der verbleibenden Lebenszeit wieder abzunehmen, obwohl der Nutzen Jahr fur Jahr weiterhin zunehmen kann. Die Simulationen zeigen auch, wie der Höhepunkt des Glücks vom persönlichen Diskontsatz, der Zuwachsrate des Einkommens, Liquiditatsbeschrankungen, Erinnerungen und anderen Parametern abhangt. Das Modell veranschaulicht aber auch jene Aspekte der Lebenszeit, die üblicherweise als ‘Slackers’, ‘Mid-life Crisis' und ‘Goldene Jahre’ bezeichnet werden〈section xml:id="abs1-3"〉〈title type="main"〉RÉSUMÉAnalyse d'un modèle d'utilité d'escompte à temps discret et à horizon limité. L'utilité est séparable et additive dans les logarithmes naturels des variables de choix, la consomption et les loisirs, et une série exogène de ‘mémoire’. On définit le bonheur comme la valeur d'escompte de l'utilité pendant la durée de la vie qui reste. Des simulations du modèle montrent comment le bonheur s'augmente au fur et à mesure que les année de grande consomption s'approchent, atteint son comble, puis baisse dans la dernière partie de la vie pendant que la durée de la vie qui reste se réduit, quoique, année par année, l'utilité puisse continuer à s'augmenter. Les simulations montrent aussi comment l'année du point culminant de bonheur dépend du taux d'escompte subjectif et personnel, du taux d'augmentation de salaire, de l'effet d'une contrainte de liquidité, de l'effet des souvenirs, et d'autres paramètres du modèle. Le modèle illustre aussi les aspects du cycle de vie caractérisés par les fainéants, la crise de ‘mid-life’ et les années ‘dorées’.

Notes: The paper studies the impact on international capital movements of the accelerated tax depreciation scheme introduced in the U. S. A. under the REAGAN administration. It is argued on theoretical grounds that, contrary to most other potential tax reforms, this depreciation scheme calls for a substantial restructuring in the world-wide capital stock in favor of the U. S. Moreover, it is demonstrated that the scheme may induce severe sectoral changes within national economies. Countries that do not take countervailing actions against the U. S. policy are likely to experience a rise in their labour intensive industries at the expense of losing their capital intensive industries. A tentative estimate based on stylized economic facts indicates the necessity of a capital import into the U. S. of at least 7% of the OECD capital stock, which means that even with a doubling of the 1983 U. S. current account deficit of $40 billion more than a decade would have to pass in order for the required structural changes to be accomplished.

Notes: The growing leniency and generosity of public income support systems has been hypothesized to negatively affect work effort. The magnitude of this effect is estimated for the U. S. and the Netherlands in the 1970s, using a three-stage Probit-OLS model employed on micro data sets. Individuals are viewed as choosing the number of hours worked on the basis of expected labor income, expected transfer income, labor market and demographic characteristics and health. The elasticity of annual hours worked with respect to expected transfer income was estimated to be -0.22 for U. S. and -0.82 (1980) for the Netherlands. Combining these elasticities with the annual percentage increases in transfer generosity yields a yearly reduction in the number of hours worked of 0.65% for the U. S. and 2.7% for the Netherlands during the 1970s. These results suggest that growing transfers have had a substantial and negative impact on desired work effort and thus on production and economic performance, especially in the Netherlands.

Notes: The objective of this study is to present some preliminary estimates of regional long run benefits and costs due to the CO2 greenhouse effect within an economic framework that permits an appraisal of CO2 policy control costs. We utilize a mathematical programming framework to solve for growth paths for North and South America both for CO2 constrained (by an optimal emissions tax rate) and unconstrained scenarios. The possible losses to North America and gains to South America suggest international cooperation on CO2 control policy may be very difficult. Cooperative adjustments to increased CO2 may prove more feasible.

Notes: BADE, KLAUS J. (Hrsg.): Auswanderer - Wanderarbeiter - Gastarbeiter.CARLSTEIN, TOMMY: Time Resources, Society and Economy.CAVES, RICHARD E.: Multinational Enterprise and Economic Analysis.CIMPA, FRANZ: Arbeitslehre für Entwicklungshilfeprojekte.ECKSTEIN, OTTO: The DRI Model of the U. S. EconomyELIASSON, GUNNAR; SHAREFKIN, MARK and YSANDER, BENGT-CHRISTER (eds.): Policy Making in a Disorderly World EconomyFRIEDMAN, JAMES: Oligopoly TheoryGARNAUT, ROSS and CLUNIES-ROSS, ANTHONY: Taxation of Mineral RentsHICKS, JOHN: Money, Interest and Wages.KALECKI, MICHA: Theorie des Wachstums und der Planung in der sozialistischen VolkswirtschaftKILLINGSWORTH, MARK R.: Labor SupplyKLEIN, LAWRENCE R.: Lectures in EconometricsLAVERGNE, RÉAL P.: The Political Economy of U. S. Tariffs: An Empirical AnalysisLEISINGER, KLAUS M.: Health Policy for Least Developed CountriesMCKENZIE, GEORGE W.: Measuring Economic Welfare: New MethodsMELMAN, SEYMOUR: Profits without ProductionMOHR, JENS-UWE: Soziologische Aspekte der Anpassung an die Industria-lisierung in einem Entwicklungsland, dargestellt am Beispiel von NigeriaPREMCHAND, A.: Government Budgeting and Expenditure Controls.QUADRIO-CURZIO, ALBERTO (ed.): The Gold Problem: Economic Perspectives.REICH, UTZ-PETER und STAHMER, CARSTEN (Hrsg.): Gesamtwirtschaftliche Wohlfahrtsmessung und Umweltqualität.REITER, KLAUS: Regionale wirtschaftliche Zusammenarbeit von Staaten der Dritten WeltRIEBEL, VOLKER: Die Schwarzarbeit als Problem der ZeitallokationRIKER, WILLIAM H.: Liberalism Against Populism.SCHARPF, FRITZ W. und BROCKMANN, MARLENE (Hrsg.): Institutionelle Bedingungen der Arbeitsmarkt - und Beschäftigungspolitik.SCHMIDBERGER, WOLF-DIETER: Fiskalpolitik in kleinen offenen Volkswirtschaften.SPRAOS, JOHN: Inequalising Trade?STIGUM, BERNT P. and WENSTØP, FRED (eds.): Foundations of Utility and Risk Theory with ApplicationsSTREETEN, PAUL: First Things First.STRØM, STEINAR (ed.): Measurement in Public ChoiceWELLS, LOUIS T. Jr.: Third World Multinationals.WILLIAMSON, JOHN (ed.): IMF ConditionalityWORSWICK, DAVID and TREVITHICK, JAMES(eds.): Keynes and the Modern World

Notes: This paper examines the causal links between intra-industry trade and economic integration, and considers whether these can be expected to differ systematically between customs unions involving developed market economies and those involving centrally planned economies. Intra-industry trade is measured for members of the E. E. C. and compared with indices for various members of CMEA (as well as several non-E. E. C. European countries). It is found that average levels of intra-industry trade are indeed higher for E. E. C. countries and various explantations for this finding are discussed.

Notes: Aoki, Masanao: Notes on Economic Time Series Analysis: System Theoretic PerspectivesBéeateille, Andréea: The Idea of Natural Inequality and Other EssaysBianchi, Patrizio: Public and Private Control in Mass Product Industry: The Cement Industry CasesBinmore, K. G.: Calculus.Biørn, Erik and Jansen, Eilev S.: Econometrics of Incomplete Cross-Section/Time-Series DataBoltho, Andrea (ed.): The European Economy.Brems, Hans: Fiscal TheoryCooper, Richard N.; Kenen, Peter B.; Braga DE Macedo, Jorge and Van Ypersele, Jacques (eds.): The International Monetary System Under Flexible Exchange Rates: Global, Regional and NationalEarl, Peter D.: The Economic Imagination. Towards a Behavioral Analysis of ChoiceFaber, Malte; Niemes, Horst und Stephan, Gunter: Entropie, Umwelt-schutz und Rohstoffproduktion. de Fontenay, Patrick et al.: Hungary: An Economic SurveyVon Furstenberg, George M. (ed.): International Money and Credit: The Policy RolesHahn, Frank: Money and InflationHart, Jeffrey A.: The New International Economic OrderHeusgen, Christoph: Ludwig Erhards Lehre von der Sozialen Marktwirt-schaft.Hooke, A. W. (ed.): The Fund and China in the International Monetary System,Kaldor, Nicholas: Grenzen der ≫General Theory.Koslowski, Peter: Gesellschaft und Staat.Möller, Rudolf: Interpersonelle Nutzenvergleiche.Novak, Michael: The Spirit of Democratic CapitalismPattanaik, Prasanta K. and Salles, Maurice (eds.): Social Choice and WelfarePegoretti, Giovanni: Capitate finanziario, profttto, interessePütz, Paul und Meyerhöfer, Walter: Hemmnisse und Hilfen für UnternehmensgründungenRecktenwald, Horst Claus: Lexikon der Staats- und Geldwirtschaft.Schmähl, Winfried (Hrsg.): Ansätze der LebenseinkommensanalyseSertel, Murat R.: Workers and IncentivesSinclair, P. J. N.: The Foundations of Macroeconomic and Monetary TheorySkidelsky, Robert: John Maynard Keynes, Hopes Betrayed 1883-1920Sommer, Jürg H.: Kostenkontrolleim Gesundheitswesen.Tuchtfeldt, Egon (HRSG): Bauteine zur Theorie der Wirtschaftspolitik

Notes: U. S. monetary impulses may be transmitted to foreign unemployment through two channels: in the first (Keynesian) channel U. S. monetary expansion boosts the U. S. demand for domestic and foreign production. This leads to an export led recovery in foreign countries. The second (monetarist) channel depends on the usual balance of payments adjustment: U. S. monetary expansion which increases foreign money supplies initiates real recovery provided foreign business cycles respond to the monetary adjustment. The spectral analysis of individual time series for U. S. and foreign unemployment over the period 1960(2) to 1980(2) reveal dominant cycles in each series coinciding with the periodicity of the business cycle. The main arguments of the study are tested in ten separate cross spectral studies of the U. S. money stock and foreign unemployment. The following general conclusion emerges: U. S. monetary expansion promises to reduce unemployment in some foreign states, but has no effect in others. This conclusion does not support the case for U. S. monetary expansion, as the effect on world unemployment is not universal, but the potential costs in the form of higher inflation remain.

Notes: In this exploratory paper, the notion of (strong) discontinuity is introduced into the theory of international labour migration. It is suggested that inter-country wage differentials alone may fail to induce international migration at the level of the decision making entity. However, three factors - risk aversion, relative deprivation and asymmetric information - in conjunction with these wage differentials, may account for international migration.

Notes: This paper suggests a way of incorporating the important concepts of optimism and pessimism into the accepted model of decision-making under uncertainty. We exploit the primitive notion that an optimist is someone who over-estimates (underestimates) the likelihood of favourable (unfavourable) outcomes. We show that this incorporation enables us to explain several commonly observed apparent violations of Subjective Expected Utility Theory. Several illustrations and economic applications are presented, and we show that attitude to ‘fate’ (as evidenced in optimism and pessimism) is a different dimension of personality than attitude to risk. We conclude by relating our extension of SEU theory to other recent extensions.

Notes: Aufgrund verschiedener Anzeichen ist zu schliessen, dass bei der ökonomischen Forschung an den deutschsprachigen staatlichen Universitäten ein deutlicher Rückstand besteht gegenüber der internationalen, weitgehend durch amerikanische Wissenschafter geprägten Spitze. Eine Analyse der für die Hochschulprofessoren massgebenden institutionellen Rahmenbedingungen zeigt, dass dies auf eine ungünstige Anreizstruktur zurückzuführen ist. Diese Regelungen wirken sich nämlich im Endeffekt dahingehend aus, dass andere Tätigkeiten (sogenannte ≪Dienstleistungen≫) im Regelfall wesentlich mehr zum Nutzen eines Professors beitragen als die Forschungsarbeit. Dies trifft auch dann zu, wenn bei den nutzenstiftenden Faktoren nicht nur das Einkommen, sondern auch Anerkennung und Befriedigung an der Tätigkeit berücksichtigt werden. Wenn der Staat an seinen Universitäten mehr und bessere Forschung wollte, müsste er demzufolge dafür sorgen, dass wissenschaftliche Arbeit relativ zu anderen Tätigkeiten wieder attraktiver würde. Zur Erreichung dieses Ziels sind grundsätzlich verschiedene Massnahmen denkbar. Bei einer vergleichenden Beurteilung schält sich jedoch als einziger vom Staat tatsächlich steuerbarer und gleichzeitig auch wirkungsvoller Aktionsparameter die Besoldungsregelung heraus: die institutionellen Rahmenbedingungen müssten demnach so umgestaltet werden, dass sich zusätzliche Forschungsarbeit in irgend einer Form auch in zusätzlichem Einkommen niederschlägt.

Notes: According to Malthusian growth theory the wage rate may be maintained constant on the path to the stationary state, at a level above ‘subsistence’ by appropriate reductions in the population growth rate. In this paper we document J. S. MILL'S version of the Malthusian model and various applications thereof.

Notes: Die Frage der Realität ≪langer Wellen≫ in der wirtschaftlichen Entwicklung des 19. und 20. Jahrhunderts ist bis heute umstritten. Nicht selten wird das Vorhandensein dieser sogenannten KONDRATIEFF-Zyklen zwar für Wertreihen bejaht, für Produktionsreihen dagegen verneint. Mit Hilfe neuer statistischer Verfahren der Zeitreihenanalyse, die auf der Filtertheorie basieren, kann man zeigen, dass für eine gegenstandsneutrale Untersuchung dieser Frage das traditionelle Instrumentarium der Zeitreihenanalyse völlig ungeeignet ist. Das Grundproblem jeder statistischen Analyse ≪langer Wellen≫, nämlich Bestimmung und Ausschaltung des Trend als der nicht-zyklischen Bewegungskomponente einer Zeitreihe, wird in diesem Artikel mit einem völlig neu entwickelten Filterverfahren gelöst. Die Ergebnisse zeigen sehr deutlich sowohl die fundamentale Bedingtheit von Trend und Zyklus, als auch das Vorhandensein langfristiger zyklischer Schwingungskomponenten in Produktionsreihen. Während die Ergebnisse die gängige Datierung der KONDRATIEFF-Zyklen bis etwa 1913 annähernd bestätigen, zeigen die Zyklen in ihrem gesamten Verlauf starke Variationen in Form und Dauer und erfordern damit eine partielle Revision tradierter Vorstellungen.

Notes: Andel, Norbert: FinunzwissenschuftBéteille, André (ed.): Equality and Inequality: Theory and PracticeBinswanger, H. C.; Frisch, H.; Nutzinger, H. G. u. a.: Arbeit ohne Umweltzerstörung.Bowles, Roger: Law and the EconomyBrams, Steven J. and Fishburn, Peter C.: Approval VotingThe Brandt Commission: Common Crisis: North South: Cooperation for World RecoveryBroome, John: The Microeconomics of Capitalism de Cecco, Marcello (ed.): International Economic Adjustment.Chick, Victoria: Macroeconomics after Keynes.Chow, Gregory C. and Corsi, Paolo (eds.): Evaluating the Reliability of Macro-economic ModelsCoddington, Alan: Keynesian Economics.Culyer, A. J. (ed.): Health Indicators.Feldstein, Martin (ed.): Behavioral Simulation Methods in Tax Policy AnalysisFolkers, Cay: Begrenzungen von Steuern und Staatsausgaben in den USA.Giersch, Herbert (ed.): Emerging TechnologiesInternational Monetary Fund: World Economic Outlook.John, J.; Schwefel, D. and Zöllner, H. (eds.): Influence of Economic Instability on Health.Johns, Richard Anthony: Tax Havens and Offshore Finance.Jones, R. J. Barry (ed.): Perspectives on Political Economy. Alternatives to the Economics of DepressionJöreskog, K. G. and Wold, H. (eds.): Systems under Indirect Observations.Orlowski, Dieter: Die internationale Wettbewerbsfähigkeit einer Volkswirtschuft.Page, Bernd: Methoden der Modellbildung in der GesundheitssystemforschungRöpke, Jochen: Die unterentwickelte Freiheit.Rosner, Peter: Arbeit und Reichtum.Sabel, Charles F.: Work and politics.Schäfer, Hans-Bernd: Landwirtschaftliche Akkumulationslasten und industrielle Entwicklung.Sen, Amartya: Choice, Welfare and MeasurementSen, Amartya and Williams, Bernard (eds.): Utilitarianism and beyondShirley, Mary et al.: World Development ReportStubblebine, Wm. Craig and Willett, Thomas D. (eds.): Reaganomics, A Midterm ReportUrsprung, Heinrich W.: Die elementare Katastrophentheorie: Eine Darstellung aus der Sicht der ÖkonomieUtton, M. A. and Morgan, A. D.: Concentration and Foreign TradeWilson, Thomas and Wilson, Dorothy J.: The Political Economy of the Welfare State

Notes: The paper analyses the growth and profitability of the world's largest firms by reference to their size, degree of multinationality, main industry of operation, nationality of ownership and research intensity. The influence of size of firm on growth is stable but weak, its influence on profitability is negligible. Industry of operation has generally strongly influenced growth but the effect on profitability is not consistent amongst different time periods and samples. Division by research intensities of firms is significant in analysing growth, less in the analysis of profitability. Degree of multinationality does not contribute consistently to the explanatory power of the full equation for either dependent variable but nationality of ownership is a consistently powerful explanatory factor.

Notes: Does externality theory provide a basis for the government's monopoly in the production of base money? Money, as has been shown, is not a public good because it does not satisfy the non-rivalness criterion (nor the non-excludability criterion). Like any public decision, political agreement on a common money or unit of account (i. e., exchange rate fixity) passes the non-rivalness test. However, whether the imposition of a common money or monetary unit is a public good or a public bad depends on whether money is a natural-monopoly good or not. Hence, there is no independent public-good justification for the government's money monopoly. The public good argument is redundant. Whether money is a natural monopoly good cannot be determined a priori, but only on the basis of experience. If governments are natural money monopolists, they should have gained their monopoly position by prevailing in the market. Historically, this is not the case. The only valid test of the natural monopoly argument is to abolish all barriers to entry and to admit free currency competition from private issuers on equal terms. An international cross-section estimate of money demand functions reveals only weak evidence of social economies of scale in the use of money. By contrast, choice among currencies is shown to be strongly affected by restrictions of convertibility.

Notes: Dieser Beitrag befasst sich mit der Bereitstellung von Gütern und Dienstleistungen durch ≪Freiwilligengruppen≫, die als ≪Klubs≫ im Sinne der Public Choice-Theorie aufgefasst werden. Es wird eine theoretische Erklärung vorgeschlagen, warum Individuen eine Freiwilligengruppe gründen und sich nicht für eine institutionelie Alternative, zum Beispiel ein gewinnorientiertes Unternehmen, entscheiden. Haupterklärungsgründe für diese Wahl sind der Nutzen, den Mitglieder von Freiwilligengruppen infolge ihrer Wahlentscheidung zusätzlich zu jenem aus dem Konsum des Klubguts ziehen, Transaktionskostengesichtspunkte, Vertrauensaspekte im Zusammenhang mit asymmetrischer Information und qualitative Unterschiede, die mit der institutionellen Form der Erbringung einer Leistung verbunden sind. Für manche Formen von Freiwilligengruppen werden altruistische Präferenzen in die Erkläng miteinbezogen.

Notes: Voluntary export restraint agreements (VERs) have emerged as a popular alternative to traditional protectionist devices, whose use is severely limited by trade agreements. Aimed at ‘disruptive’ suppliers, VERs tend to shift the source of imports away from the most efficient producers. Yet such negotiated agreements are attractive to exporters because they are preferable to the alternative of unilateral import barriers, especially since they allow exporters to control the trade restriction and thereby raise the export price. In fact all effective participants gain from the VER agreement, while consumers and others hurt by it are excluded from the negotiating process. Among the inherent problems of VERs, however, is their tendency to divert exports towards third markets, spreading protectionism worldwide and destabilizing trade relations. Continuing protectionist pressure in such an environment encourages the development of more sophisticated and comprehensive methods of induced export restraint.

Notes: Abele, Hanns; Nowotny, Ewald; Schleicher, Stefan und Winckler, Georg (Hrsg.): Handbuch der österreichischen WirtschaftspolitikBalassa, Bela and Associates: Development strategies in semi-industrial economiesBaumol, William J.; Panzar, John C. and Willig, Robert D.: Contestable Markets and The Theory of Industry Structure.Begg, David K. H.: The Rational Expectations Revolution in Macroeconomics.Ben-Porath, Yoram (ed.): Income Distribution and the Family.Bennett, James T. and Di Lorenzo, Thomas J.: Underground Government: The Off-Budget Public SectorBrandt, A.; Horisberger, B. and Von Wartburg, W. P.(eds.): Cost-Sharing in Health Care. van Duijn, J. J.: The Long Wave in Economic LifeFrisch, Helmut (ed.): Schumpeterian EconomicsFujimori, Y.: Modern Analysis of Value TheoryIngram, James C.: International EconomicssJones, Leroy P. (ed.): Public enterprise in less-developed countriesKindleberger, Charles and Di Tella, G. (eds.): Economics in the Long View.Kirzner, Israel M. (ed.): Method, Process and Austrian Economics: Essays in Honor of Ludwig von MisesKornai, János: Growth, Shortage and Efficiency.Kozma, Ferenc: Economic Integration and Economic StrategyKrueger, Anne O.: Exchange-Rate DeterminationKülp, Bernhard: FreizeitökonomieMüller-Godeffroy, H. et al.: Der neue Protektionismus.Nezeys, Bertrand: Les relations économiques extérieures de la France.Ordeshook, Peter C. and Shepsle, Kenneth A. (eds.): Political EquilibriumPatinkin, Don: Anticipations of the General Theory?Rugman, Alan M. (ed.): New Theories of the Multinational EnterpriseRydén, Bengt and Bergström, Villy (eds.): Sweden: Choices for Economic and Social Policy in the 1980sSeurot, François: Inflation et emploi duns les pays socialistesSheffrin, Steven M.: Rational ExpectationsStegmuller, W.; Balzer, W. and Spohn, W. (eds.): Philosophy of Economics.Stewart, Frances and Sengupta, Arjun: International Financial Cooperation.Sundrum, R. M.: Development Economics.Tullock, Gordon: Economics of Income RedistributionU. S. Gold Commission: Report to the Congress of the Commission on the Role of Gold in the Domestic and International Monetary System

Notes: Boss, Alfred, Claus-Friedrich Laaser, Klaus-Werner Schatz et al. (1996). De-regulierung in Deutschland. Eine empirische Analyse. Tübingen: J.C.B. Mohr (Paul Siebeck). 422 S. DM 148.00. ISBN 3-16-146593-8.Caves, Richard E. (1996). Multinational Enterprise and Economic Analysis, 2nd Ed. Cambridge/New York/Melbourne: Cambridge University Press. 322 pp. £14.95 (paper). ISBN 0-521-47858-8. $ 40.00 (hard). ISBN 0-521-47265-2.Cencini, Alvaro and Mauro Baranzini (cds.) (1996). Inflation and Unemployment. Contributions to a new macroeconomic approach. London/New York: Routledge. 192 pp. £40. ISBN 0-415-11822-0.Daly, Herman E. (1996): Beyond Growth. The Economics of Sustainable Development. Boston: Beacon Press. 253 pp. Can £40.95. ISBN 0-8070-4708-2.Faucheux, S., D. Pcarce and J. Proops (eds.) (1996). Models of Sustainable Development. Cheltenham, UK and Brookllcld, USA: Edward Elgar. 365 pp. £49.95 ISBN 1-85898-269-3.Hamlin, Alan P. (ed.) (1996). Ethics and Economics. Vol. I and Vol. II. Cheltenham, UK/Brookfield, USA: Edward Elgar. 625 pp. and 514 pp. £230.00. ISBN 1-85278-814-3.Harrop, Jeffrey (1996). Structural Funding and Employment in the European Union. Financing the Path to Integration. Cheltenham, UK/Brookfield, USA : Edward Elgar. 192 pp. £49.95. ISBN 1-85898-219-7.Irwin, Douglas A. (1996). Against the Tide. An Intellectual History of Free Trade. Princeton: Princeton University Press. 165 pp. $ 29.95. ISBN 0-691-01138-9.Kirkpatrick, C. and J. Weiss (eds.) (1996). Cost-Benefit Analysis and Project Appraisal in Developing Countries. Cheltenham, UK/Brookfield, USA: Edward Elgar. 321 pp. £49.95. ISBN 1-85898-346-0.Amitrajeet A. Batabyal, Assistant Professor Utah State University, Dept. of Economics Logan, UT 84322-3530 (USA)Mayer, Achim (1996). Fegefeuer und Bettelorden: Päpstliches Marketing im 13. Jahrhundert. Ein Beitrag zur Analyse der Unternehmensgeschichte der katholischen Kirche unter Einsatz der Franchisetheorie. Marburg: Metropolis. 211 S. ISBN 3-89518-096-3.Stefan Schaltegger, Assistenzproressor Universitat Basel, Wirtschaftswissenschaftliches Zentrum (WWZ) Petersgraben 51, CH-4003 Basel (Switzerland)Paul, E. F., F. D. Miller and J. Paul (eds.) (1996). Contemporary Political and Social Philosophy. Cambridge/New York/Melbourne: Cambridge University Press. 240 pp. £14.95. ISBN 0-521-48399-9.Amitrajeet A. Batabyal, Assistant Professor Utah State University, Dept. of Economics Logan, UT 84322-3530 (USA)Schulz, Giinther (1994). Wiederaufbau in Deutschland. Die Wohnungspolitik in den Westzonen und der Bundesrepublik von 1945 bis 1957. Düsseldorf: Droste. 405 S. DM 58.-. ISBN 3-7700-0975-4.Tietzel, Manfred (1995). Literaturökonomik. Tübingen: J.C.B. Mohr (Paul Siebeck). 283 S. ISBN 3-16-146425-7.Van Parijs, Philippe (1995). Real Freedom for All. What (if Anything) Can Justify Capitalism? Oxford, UK: Oxford University Press. 330 pp. $ 35.00. ISBN 019-8279051.Wolf, Susanna (1996). Bcgrcnzlcr Erfolg der Lome-Abkommcn. Einc cmpiri-schc Untersuchung dcr Wirkungen dcr EU-Zollpraferenzcn aul'dcn Handel der AKP-Slaaten. Frankfurt am Main, Berlin u.a.: Peter Lang. 250 S. DM 79.00. ISBN 3-631-30856-6.

Notes: Since the sixties, the discussion whether democracy is a precondition for or a result of economic growth has not yet been finished. In this paper a comparative institutional analysis of the relative performance of direct and representative democratic decision making in the Swiss economy is undertaken using a cross section of the 26 Swiss states in 1989 and pooled cross section time series data for the states from 1982 to 1993. The empirical results and robustness tests support the hypothesis that the stronger control of the representatives by the voters due to obligatory and optional referenda leads to better economic performance.〈section xml:id="abs1-2"〉〈title type="main"〉ZUSAMMENFASSUNGSeit den sechziger Jahren diskutieren Sozialwissenschaftler darüber, welche Auswirkungen De-mokiatie auf das wirtschaftliche Wachstum eines Landes hat. In diesem Aufsatz wird der Einfluss direkt- und repräsentativ-demokratischer Entscheidungsprozesse in einer vergleichenden institutionellen Analyse unter Verwendung von kantonalen Querschnittsdaten für 1989 und gepoolten Querschnitts- und Zeitreihendaten für den Zeitraum von 1982 bis 1993 untersucht. Die empirischen Ergebnisse und unterschiedliche Robustheitstests stützen die Hypothese, dass die stärkere Kontrolle der Repräsentanten durch die Stimmbürger mit Hilfe von obligatorischen und fakultativen Referenden zu einer relativ besseren wirtschaftlichen Leistungsfähigkeit führt.〈section xml:id="abs1-3"〉〈title type="main"〉RÉSUMÉLa question de savoir si les institutions démocratiques ont un effet positif ou negatif sur le développement économique est discutée depuis les années soixante à soixante-dix. La présente étude économétrique compare l'effet de différents types d'institutions démocratiques (démocratic représentative et directe) sur le développement économique. A cette fin nous analysons le niveau de développement économique des cantons suisses en fonction de leurs institutions politiques. Les résultats empiriques, qui se révèlent robustes dans différents tests, appuient l'hypothèse qu'un contrǒle plus étroit des élus par le référendum facultatif ou obligatoire conduit à une plus grande performance économique.

Notes: Are modern democracies capable of preserving the constitution of liberty and capable of preserving the natural basis of human existence in the long-run? The achievement of these aims requires political actions toward fundamental changes in the life of modern societies. The respective political actors have to develop and to sustain long-term constitutional and ecological interests. Can these actors be conceived as homines oeconomici? Within public choice there have been important attempts to derive long-term interests on the basis of homo oeconomicus. These attempts have led, however, to theoretical difficulties. To develop a solution we introduce the notion of homo politicus. Homo politicus is concerned with the common search for the general interest of a political community which in traditional philosophy is called ‘justice’. The concepts of homo oeconomicus and homo politicus are not mutually exclusive alternatives, but dimensions of human behaviour. Neither of them can be empirically observed in its pure form. We argue that we need a combination of both concepts to understand political phenomena. Thereby we seek to contribute to a theoretical basis which allows the derivation of the constitutional interest and the ecological interest.〈section xml:id="abs1-2"〉〈title type="main"〉ZUSAMMENFASSUNGKönnen moderne demokratische Rechtsstaaten langfristig eine freiheitliche Verfassung bewahrcn und den Fortbestand der natürlichen Lebensgrundlagen sichern? Die Verwirklichung dieser beiden Ziele macht politische Handlungen erforderlich, die zu fundamentalen Änderungen in der Lebensweise moderner Gesellschaften führen. Die politisch Handelnden müssen hierzu von langfristigen Interessen an einer freiheitlichen Verfassung (konstitutionelles Interesse) und am Fortbestand der natürlichen Lebensgrundlagen (ökologisches Interesse) geleitet wcrden. Können diese politisch Handelnden angemessen als homines oeconomici aufgefasst werden? In der Public Choice sind bedeutsame Versuche unternommen worden, Langzeitintcressen auf der Basis des homo oeconomicus abzuleiten. Dabei ergaben sich indes beträchtliche konzeptionelle Probleme. Um eine Lösung denkbar zu machen, führen wir den Begriff des homo politicus ein. Der homo politicus ist der Mensch, insofern er sich gemeinsam mil andern in einem Handlungsfeld betätigt, in dem es um das allgemeine Interesse einer Gesellschaft, in der philosophischen Tradition: um die ‘Gerechtig-keit’, geht. Die Konzepte des homo oeconomicus und des homo politicus schliessen sich nicht gegenseitig aus, sondern verweisen auf verschiedene Dimensionen menschlichen Verhaltens, die in ihrer Reinform empirisch nicht beobachtet werden. Wir sind der Ansicht, dass die Untersuchung politischer Phänomene vielfach eine Kombination beider Konzepte erforderlich macht. Unser Ansatz versteht sich als Beitrag zu einer theoretischen Grundlegung, die die Ableitung des konstitutionellen und des ökologischen Interesses ermöglichen soll.〈section xml:id="abs1-3"〉〈title type="main"〉RÉSUMÉEst-ce que les démocraties modernes sont capables de préserver la constitution de la liberté et en měme temps la base naturelle de l'existence humaine? Pour attcindre ces buts, il faut des actions politiques pour des changements fundamentals dans les societés modernes. II faut que les acteurs politiques développent et soutiennent un interět constitutionel et un interět ěcologique à long terme. Est-ce qu'il est possible que ces acteurs soient dénotés comme homines oeconomici? Dans la théorie de public choice il y avait des essais importants de dériver des interets à long terme en base de l'homo oeconomicus. Mais ces essais ont menés à de graves difficultés théoretiques. En adressant ces problèmes nous introduisons la notion homo politicus. Homo politicus est concernéà l'action politique. Cette action consiste en la recherche de 1 interět général d'une communité politique que l'on appelle ‘justice’. Les conceptes de homo oeconomkus et homo politicus ne s'exclusent pas mais sont des dimensions differents de la manière d'agir humaine. Aucune ne peut ětre observéc dans sa forme pure. Nous argumentons que souvent l'on a besoin d'une combinaison des ces deux concepts pour bien comprendre des phénomènes politiques. Avec cet article nous essayons de contribuer à la base théorique qui permet la derivation de l'interět constitutionel et de l'interět écologique.