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  • Wiley  (7)
  • ZBW - Deutsche Zentralbibliothek für Wirtschaftswissenschaften, Leibniz-Informationszentrum Wirtschaft Kiel, Hamburg  (3)
  • Cambridge Univ. Press  (2)
  • Cambridge University Press  (2)
  • 1
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    Berlin: Deutsches Institut für Wirtschaftsforschung (DIW) | ZBW - Deutsche Zentralbibliothek für Wirtschaftswissenschaften, Leibniz-Informationszentrum Wirtschaft Kiel, Hamburg
    Publication Date: 2018-01-25
    Description: The paper presents results for the development of total factor productivity (TFP) growth for 35 industries. It analyses the medium-term and long-term trends in these industries during the last two decades. The method used for the calculation was first proposed by Hulten (1986). It takes into account capacity utilization effects for the capital stock. Comparing the average TFP growth rates for manufacturing before, during, and after the two oil price shocks one observes that there is a steady acceleration from a fairly low 1.4 per cent rate during 1970-74 to 2 per cent during 1984-89. Contrary labour productivity, measured by annual working hours, declined. Therefore the increase in TFP growth rates has to be attributed to a marked shift in capital productivity. During the early 70ies capital productivity growth rates were negative in manufacturing supporting a hypothesis of capital using and labour saving technological progress. Since then capital productivity became positive across all major subindustries in manufacturing. This led to the up-tum in TFP growth. Four hypothesis are proposed in the paper to explain the shift in the development of capital productivity growth. In the last section a number of cross-section regressions for the 35 industries for the whole period as well as a number of subperiods are calculated. As the results show Verdooms Law seems to be valid for all periods considered. Therefore high growth industries are - with respect to gross value added - leading industries in high TFP growth as well
    Keywords: D24 ; ddc:330
    Repository Name: EconStor: OA server of the German National Library of Economics - Leibniz Information Centre for Economics
    Language: English
    Type: doc-type:workingPaper
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  • 2
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    Berlin: Duncker & Humblot | ZBW - Deutsche Zentralbibliothek für Wirtschaftswissenschaften, Leibniz-Informationszentrum Wirtschaft Kiel, Hamburg
    Publication Date: 2018-01-25
    Keywords: ddc:330 ; Wettbewerbspolitik ; Industrieökonomik ; Deutschland
    Repository Name: EconStor: OA server of the German National Library of Economics - Leibniz Information Centre for Economics
    Language: German
    Type: doc-type:article
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  • 3
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    Berlin: Deutsches Institut für Wirtschaftsforschung (DIW) | ZBW - Deutsche Zentralbibliothek für Wirtschaftswissenschaften, Leibniz-Informationszentrum Wirtschaft Kiel, Hamburg
    Publication Date: 2018-01-25
    Description: The paper presents results for the development of total factor productivity (TFP) growth for 35 industries. It analyses the medium-term and long-term trends in these industries during the last two decades. The method used for the calculation was first proposed by Huiten (J986). It takes into account capacity utilization effects for the capital stock. Comparing the average TFP growth rates for manufacturing before, during, and after the two oil price shocks one observes that there is a steady acceleration from a fairly low 1.4per cent rate during 1970-74 to 2 per cent during 1984-89. Contrary labour productivity, measured by annual working hours, declined. Therefore the increase in TFP growth rates has to be attributed to a marked shift in capital productivity. During the early 70ies capital productivity growth rates were negative in manufacturing supporting a hypothesis of capital using and labour saving technological progress. Since then capital productivity became positive across all major subindustries in manufacturing. This led to the up-turn in TFP growth. Four hypothesis are proposed in the paper to explain the shift in the development of capital productivity growth. In the last section a number of cross-section regressions for the 35 industries for the whole period as well as a number of subperiods are calculated. As the results show Verdoorns Law seems to be valid for all periods considered Therefore high growth industries are - with respect to gross value added - leading industries in high TFP growth as well.
    Keywords: D24 ; ddc:330
    Repository Name: EconStor: OA server of the German National Library of Economics - Leibniz Information Centre for Economics
    Language: German
    Type: doc-type:workingPaper
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  • 4
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    Cambridge Univ. Press
    In:  Antarctic Science, 27 (4). pp. 388-402.
    Publication Date: 2015-07-21
    Description: The development of coastal polynyas, areas of enhanced heat flux and sea ice production strongly depend on atmospheric conditions. In Antarctica, measurements are scarce and models are essential for the investigation of polynyas. A robust quantification of polynya exchange processes in simulations relies on a realistic representation of atmospheric conditions in the forcing dataset. The sensitivity of simulated coastal polynyas in the south-western Weddell Sea to the atmospheric forcing is investigated with the Finite-Element Sea ice-Ocean Model (FESOM) using daily NCEP/NCAR reanalysis data (NCEP), 6 hourly Global Model Europe (GME) data and two different hourly datasets from the high-resolution Consortium for Small-Scale Modelling (COSMO) model. Results are compared for April to August in 2007–09. The two coarse-scale datasets often produce the extremes of the data range, while the finer-scale forcings yield results closer to the median. The GME experiment features the strongest winds and, therefore, the greatest polynya activity, especially over the eastern continental shelf. This results in higher volume and export of High Salinity Shelf Water than in the NCEP and COSMO runs. The largest discrepancies between simulations occur for 2008, probably due to differing representations of the ENSO pattern at high southern latitudes. The results suggest that the large-scale wind field is of primary importance for polynya development.
    Type: Article , PeerReviewed
    Format: text
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  • 5
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    Cambridge Univ. Press
    In:  Antarctic Science, 26 (3). pp. 309-326.
    Publication Date: 2015-08-03
    Description: Mesoscale model simulations were conducted for the Weddell Sea region for the autumn and winter periods of 2008 using a high-resolution, limited-area, non-hydrostatic atmospheric model. A sea ice–ocean model was run with enhanced horizontal resolution and high-resolution forcing data of the atmospheric model. Daily passive thermal and microwave satellite data was used to derive the polynya area in the Weddell Sea region. The focus of the study is on the formation of polynyas in the coastal region of Coats Land, which is strongly affected by katabatic flows. The polynya areas deduced from two independent remote sensing methods and data sources show good agreement, while the results of the sea ice simulation show some weaknesses. Linkages between the pressure gradient force composed of a katabatic and a synoptic component, offshore wind regimes and polynya area are identified. It is shown that the downslope surface offshore wind component of Coats Land is the main forcing factor for polynya dynamics, which is mainly steered by the offshore pressure gradient force, where the katabatic force is the dominant term. We find that the synoptic pressure gradient is opposed to the katabatic force during major katabatic wind events.
    Type: Article , PeerReviewed
    Format: text
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  • 6
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    AGU (American Geological Union) | Wiley
    In:  Journal of Geophysical Research - Oceans, 118 . pp. 1940-1954.
    Publication Date: 2014-08-04
    Description: This study deals with observations and simulations of the evolution of coastal polynias focusing on the Ronne Polynia. We compare differences in polynia extent and ice drift patterns derived from satellite radar images and from simulations with the Finite Element Sea Ice Ocean Model, employing three atmospheric forcing data sets that differ in spatial and temporal resolution. Two polynia events are analyzed, one from austral summer and one from late fall 2008. The open water area in the polynia is of similar size in the satellite images and in the model simulations, but its temporal evolution differs depending on katabatic winds being resolved in the atmospheric forcing data sets. Modeled ice drift is slower than the observed and reveals greater turning angles relative to the wind direction in many cases. For the summer event, model results obtained with high-resolution forcing are closer to the drift field derived from radar imagery than those from coarse resolution forcing. For the late fall event, none of the forcing data yields outstanding results. Our study demonstrates that a dense (1–3 km) model grid and atmospheric forcing provided at high spatial resolution ( 〈 50 km) are critical to correctly simulate coastal polynias with a coupled sea-ice ocean model.
    Type: Article , PeerReviewed
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  • 7
    Publication Date: 2019
    Description: Abstract Multi‐model Arctic Ocean ``Climate Response Function” (CRF) experiments are analyzed in order to explore the effects of anomalous wind forcing over the Greenland Sea (GS) on poleward ocean heat transport, Atlantic Water (AW) pathways, and the extent of Arctic sea ice. Particular emphasis is placed on the sensitivity of the AW circulation to anomalously strong or weak GS winds in relation to natural variability, the latter manifested as part of the North Atlantic Oscillation (NAO). We find that anomalously strong (weak) GS wind forcing, comparable in strength to a strong positive (negative) NAO index, results in an intensification (weakening) of the poleward AW flow, extending from south of the North Atlantic Subpolar Gyre, through the Nordic Seas, and all the way into the Canadian Basin. Reconstructions made utilizing the calculated CRFs explain ~50 % of the simulated AW flow variance; this is the proportion of variability that can be explained by GS wind forcing. In the Barents and Kara Seas there is a clear relationship between the wind‐driven anomalous AW inflow and the sea ice extent. Most of the anomalous AW heat is lost to the atmosphere, and loss of sea ice in the Barents Sea results in even more heat loss to the atmosphere, and thus effective ocean cooling. Release of passive tracers in a subset of the suite of models reveals differences in circulation patterns and shows that the flow of AW in the Arctic Ocean is highly dependent on the wind stress in the Nordic Seas.
    Print ISSN: 2169-9275
    Electronic ISSN: 2169-9291
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
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  • 8
    Publication Date: 1979-03-01
    Print ISSN: 0014-2956
    Electronic ISSN: 1432-1033
    Topics: Biology , Chemistry and Pharmacology , Medicine
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  • 9
    Publication Date: 1992-08-01
    Print ISSN: 0014-2956
    Electronic ISSN: 1432-1033
    Topics: Biology , Chemistry and Pharmacology , Medicine
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  • 10
    Publication Date: 2015-01-29
    Description: The development of coastal polynyas, areas of enhanced heat flux and sea ice production strongly depend on atmospheric conditions. In Antarctica, measurements are scarce and models are essential for the investigation of polynyas. A robust quantification of polynya exchange processes in simulations relies on a realistic representation of atmospheric conditions in the forcing dataset. The sensitivity of simulated coastal polynyas in the south-western Weddell Sea to the atmospheric forcing is investigated with the Finite-Element Sea ice-Ocean Model (FESOM) using daily NCEP/NCAR reanalysis data (NCEP), 6 hourly Global Model Europe (GME) data and two different hourly datasets from the high-resolution Consortium for Small-Scale Modelling (COSMO) model. Results are compared for April to August in 2007–09. The two coarse-scale datasets often produce the extremes of the data range, while the finer-scale forcings yield results closer to the median. The GME experiment features the strongest winds and, therefore, the greatest polynya activity, especially over the eastern continental shelf. This results in higher volume and export of High Salinity Shelf Water than in the NCEP and COSMO runs. The largest discrepancies between simulations occur for 2008, probably due to differing representations of the ENSO pattern at high southern latitudes. The results suggest that the large-scale wind field is of primary importance for polynya development.
    Print ISSN: 0954-1020
    Electronic ISSN: 1365-2079
    Topics: Biology , Geography , Geosciences
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