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From Transition to Competition: Dynamic Efficiency Analysis of Polish Electricity Distribution Companies
Cullmann, Astrid; Hirschhausen, Christian von - DIW Berlin (Deutsches Institut für Wirtschaftsforschung) - 2007
the panel: the nonparametric data envelopment analysis (DEA), the free disposal hull (FDH), and, as a parametric approach …, the stochastic frontier analysis (SFA). We then measure and decompose productivity change with Malmquist indices. We find …
Persistent link: https://www.econbiz.de/10005068911
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Do External Technology Acquisitions Matter for Innovative Efficiency and Productivity?
Gantumur, Tseveen; Stephan, Andreas - DIW Berlin (Deutsches Institut für Wirtschaftsforschung) - 2010
To quickly adapt to technological change and developments, and thus remain competitive, firms increasingly resort to the use of external technology. This paper investigates whether and to what extent the acquisition of external disembodied technology affects the efficiency and productivity in...
Persistent link: https://www.econbiz.de/10008539928
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Inefficiency in the German Mechanical Engineering Sector
Schiersch, Alexander - DIW Berlin (Deutsches Institut für Wirtschaftsforschung) - 2009
important since that would be a signal for a structural problem within the industry. The analysis - using recently developed DEA …
Persistent link: https://www.econbiz.de/10008492033
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Next Stop: Restructuring?: A Nonparametric Efficiency Analysis of German Public Transport Companies
Hirschhausen, Christian von; Cullmann, Astrid - DIW Berlin (Deutsches Institut für Wirtschaftsforschung) - 2008
companies in Germany (1990-2004). We apply both deterministic data envelopment analysis (DEA) and bootstrapping to test the …
Persistent link: https://www.econbiz.de/10005068743
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Downsizing in German Chemical Manufacturing Industry during the 1990s: Why Small Is Beautiful?
Badunenko, Oleg - DIW Berlin (Deutsches Institut für Wirtschaftsforschung) - 2007
German chemical manufacturing industry is marked by two major structural changes during 1992-2004. Firstly, number of firms was ranging extensively: from 676 to 901, while only 96 firms represented balanced panel. Secondly, size of the firm dropped considerably-by 88%. This paper is intended to...
Persistent link: https://www.econbiz.de/10005069049
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Overcoming Data Limitations in Nonparametric Benchmarking: Applying PCA-DEA to Natural Gas Transmission
Nieswand, Maria; Cullmann, Astrid; Neumann, Anne - DIW Berlin (Deutsches Institut für Wirtschaftsforschung) - 2009
of limited data availability in some regulated industries. Here, traditional DEA may result in a lack of discriminatory … power when high numbers of variables but only limited observations are available. We apply PCA-DEA for radial efficiency … while maintaining most of the variation in the original data. Our results suggest that the PCA-DEA methodology reduces the …
Persistent link: https://www.econbiz.de/10008611291