ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Articles  (33)
  • Springer  (33)
  • 1995-1999  (24)
  • 1990-1994  (9)
  • Economics  (21)
  • Geography  (11)
  • Architecture, Civil Engineering, Surveying
Collection
  • Articles  (33)
Source
Keywords
Publisher
Years
Year
Journal
Topic
  • 1
    Electronic Resource
    Electronic Resource
    Airborne pollen and spores of León (Spain) (1993)
    Springer
    International journal of biometeorology 37 (1993), S. 89-95 
    Details
    ISSN: 1432-1254
    Keywords: Airborne pollen ; Airborne spores ; Pollen diagrams ; Meteorological factors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Abstract A qualitative and quantitative analysis of airborne pollen and spores was carried out over 2 years (from September 1987 to August 1989) in the city of León. Slides were prepared daily using a volumetric pollen trap, which was placed on the Faculty of Veterinary Science building (University of León) 12m above ground-level. Fifty-one pollen types were observed; the most important of these were: Cupressaceae during the winter,Pinus andQuercus in spring, and Poaceae, Leguminosae and Chenopodiaceae in the summer. The results also showed the existence of a rich mould spore assemblage in the atmosphere. The group of Amerospores (Penicillium, Aspergillus andCladosporium) as well as Dictyospores (Alternaria) were the most abundant;Puccinia was common in the air in August. Fluctuations in the total pollen and spores m3 of air were compared with meteorological parameters (temperature, relative humidity and rainfall). From the daily sampling of the atmosphere of León, considering the maximum and minimum temperature and duration of rainfall, the start of the pollen grain season was observed generally to coincide with a rise in temperature in the absence of rain.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01214387
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    The pricing of time-varying beta (1997)
    Springer
    Empirical economics 22 (1997), S. 345-363 
    Details
    ISSN: 1435-8921
    Keywords: APT ; beta ; (G)ARCH ; Systematic Risk ; C32 ; G12
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Notes: Abstract We generalize an asset pricing model based on the Arbitrage Pricing Theory (APT) allowing beta to be time-varying. Making beta a random variable adds flexibility to the model because permits a non-linear relation between individual returns and the set of factors, and accounts for the effect of possible omitted variables. We integrate the conditional APT with a general linear stochastic process for beta. We analyze the behavior of the conditional expected return, the conditional variance and conditional covariance of individual asset returns as functions of the conditional moments of beta. On considering time-varying betas we introduce another source of uncertainty (risk) independent of the factors. We need to disentangle if this extra risk is systematic or non-systematic. To this end, we introduce a modified conditional APT model that rationalizes why the time variation of beta may represent extra systematic risk. For a sample of individual stocks, we test the hypothesis of time-varying beta and the feasibility of the modified conditional APT. We present a test for time-varying beta based on the conditional second moments of returns. We find that there is strong evidence against constancy of betas in favor of a random coefficient model, and that the time variation of beta is due to non-systematic behavior of the firms and investors should be able to diversify this risk away.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01208828
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Chapter 7 DEA multiplier analytic center sensitivity with an illustrative application to independent oil companies (1996)
    Springer
    Annals of operations research 66 (1996), S. 163-177 
    Details
    ISSN: 1572-9338
    Keywords: Efficiency sensitivity ; interior point algorithm ; analytic centers ; potential data errors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Notes: Abstract The setE of extreme points which are also efficient are of basic importance in defining the efficiency frontier, from which the observations for all other DMUs are evaluated in DEA. A significant question which we address is “What variations in the data can be tolerated before the membership inE is changed?” This topic is explored using (1) a simple illustrative example, and (2) production data for 30 independent oil companies during the period 1983–1985. Data were allowed to vary simultaneously for all observations and in different subsets determined by random drawings of data for points both inE and not inE. The results were found to be robust in this study, thereby lending further support to earlier studies which also found these classifications into efficient and inefficient performers to be robust in DEA. Technical developments for these new methods of sensitivity analysis are supplied. These developments feature an application of analytic center (interior point) algorithms which ensure that the Strong Complementary Slackness Condition (SCSC) is fulfilled. The solutions satisfy a mathematical condition called “centrality”. Generally, the solutions are at interior points calledanalytic centers. At these interior points, continuity of the input-output ratios ensures that DMUs inE remain inE for at least small relative variations in the data, while empirically these properties have been found to extend to much larger variations in the data sets.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02187299
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Chapter 6 On the construction of strong complementarity slackness solutions for DEA linear programming problems using a primal-dual interior-point method (1996)
    Springer
    Annals of operations research 66 (1996), S. 139-162 
    Details
    ISSN: 1572-9338
    Keywords: Primal-dual interior-point algorithm ; strong complementarity slackness ; analytic center of the solution set ; DEA
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Notes: Abstract A novel approach for solving the DEA linear programming problems using a primaldual interior-point method is presented. The solution found by this method satisfies the Strong Complementarity Slackness Condition (SCSC) and maximizes the product of the positive components among all SCSC solutions. The first property is critical in the use of DEA and the second one contributes significantly to the reliability of the solution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02187298
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    The time path of the marginal cost of oil: The turning point and the subsequent upward drift (1996)
    Springer
    Annals of operations research 68 (1996), S. 409-422 
    Details
    ISSN: 1572-9338
    Keywords: Depletable non-renewable resources ; marginal cost ; technological progress ; depletion of reserves ; constrained least squares regression
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Notes: Abstract The gradual exhaustion of existing deposits of a depletable non-renewable resource such as oil tends to shift the supply price curve of the resource upwards, increasing its marginal cost. Advances in technologies for exploration and production act as a brake on such upward shifts. Thus, there is a tug-of-war between the gradual exhaustion of existing deposits and technological progress. Using a recently developed constrained least-squares regression technique, we demonstrate that technological progress was the dominant force of the two during the first part of this century, causing a secular drop in marginal costs, but that this situation eventually was reversed, and that the gradual exhaustion of deposits gained the upper hand, causing marginal costs to increase. The turning point occurred around 1971–72. We also discuss the forecasting of the possible current upward drift of marginal costs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02207224
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Cooperative solutions in an economic growth game (1998)
    Springer
    Annals of operations research 84 (1998), S. 209-230 
    Details
    ISSN: 1572-9338
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Notes: Abstract A differential game with workers and capitalists as players is considered. The players distribute the output of an economy and make decisions about their consumption and investment. They wish to reach at least a proposed final capital. The paper studies the non-dominated payoffs and the associated strategies in the case of the players cooperating and synchronizing their actions. The Pareto solutions are compared with the Nash equilibria.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018940920851
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Common Consequence Conditions in Decision Making under Risk (1998)
    Springer
    Journal of risk and uncertainty 16 (1998), S. 115-139 
    Details
    ISSN: 1573-0476
    Keywords: Rank-dependent expected utility ; prospect theory ; commonconsequence effects ; fanning out ; fanning in ; probability weightingfunction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Notes: Abstract We generalize the Allais common consequence effect by describing three common consequence effect conditions and characterizing their implications for the probability weighting function in rank-dependent expected utility. The three conditions—horizontal, vertical, and diagonal shifts within the probability triangle—are necessary and sufficient for different curvature properties of the probability weighting function. The first two conditions, shifts in probability mass from the lowest to middle outcomes and middle to highest outcomes respectively, are alternative conditions for concavity and convexity of the weighting function. The third condition, decreasing Pratt-Arrow absolute concavity, is consistent with recently proposed weighting functions. The three conditions collectively characterize where indifference curves fan out and where they fan in. The common consequence conditions indicate that for nonlinear weighting functions in the context of rank-dependent expected utility, there must exist a region where indifference curves fan out in one direction and fan in the other direction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1007714509322
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    The 1987–88 Alaskan Bight tsunamis: Deep ocean data and model comparisons (1991)
    Springer
    Natural hazards 4 (1991), S. 119-139 
    Details
    ISSN: 1573-0840
    Keywords: Tsunamis ; ocean measurements ; model comparisons
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geography , Geosciences
    Notes: Abstract Excellent deep ocean records have been obtained of two tsunamis recently generated in the Alaskan Bight on 30 November 1987 and 6 March 1988, providing the best available data set to date for comparison with tsunami generation/propagation models. Simulations have been performed with SWAN, a nonlinear shallow water numerical model, using source terms estimated by a seafloor deformation model based on the rectangular fault plane formalism. The tsunami waveform obtained from the model is quite sensitive to the specific source assumed. Significant differences were found between the computations and observations of the 30 November 1987 tsunami, suggesting inadequate knowledge of the source characteristics. Fair agreement was found between the data and the model for the first few waves of the 6 March 1988 tsunami. Model estimates of the seismic moment and total slip along the fault plane are also in fair agreement with those derived from the published Harvard centroid solution for the 6 March 1988 event, implying that the computed seafloor deformation does bear some similarity to the actual source.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00162783
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Brand promotions as a lottery (1995)
    Springer
    Marketing letters 6 (1995), S. 221-233 
    Details
    ISSN: 1573-059X
    Keywords: Price promotions ; impact of promotions ; decision making under ambiguity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Notes: Abstract This paper shows that imprecisely stated discounts in brand promotions offered in the form of a low-probability lottery can lead to higher sales (purchase intentions) and consequently profits than equally costly conventional promotions offering a precise discount on the entire stock. Results from two different experimental studies support our findings. For high-probability lottery-like promotions, imprecise discounts lead to a lower performance for the brand than conventional promotions. We attempt to explain the findings by drawing on the behavioral decision theory literature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00995113
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    On-site detection of corrosion in reinforced concrete structures (1991)
    Springer
    Materials and structures 24 (1991), S. 346-350 
    Details
    ISSN: 1359-5997
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying
    Description / Table of Contents: Resume Le besoin pressant se fait sentir partout dans le monde de disposer de méthodesin situ pour détecter le taux de détérioration dans les constructions en béton armé. Dans cet article, on propose deux nouvelles méthodes dérivées de la méthode de résistance de polarisation, mais qui diffèrent de celle-ci en ce qu’elles peuvent s’appliquer aux structures elles-mêmes, malgré la distribution non uniforme des signaux électriques dans ces dernières. Les deux méthodes proposées sont d’une simplicité et d’une sûreté comparables à celles offertes par la mesure directe de résistance de polarisation.
    Notes: Abstract The availability of on-site methods of diagnosis of the deterioration rate in reinforced concrete structures is a pressing technical need all over the world. Two new methods are proposed in this paper which are derived from the polarization resistance method, but which, differing from this method, are applicable to full-size structures, in spite of the non-uniform distribution of the electric signals in them. The two proposed procedures are of a simplicity and reliability comparable with those offered by direct measurement of polarization resistance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02472067
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...