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Imposing and testing curvature conditions on a Box-Cox function
Koebel, Bertrand M.; Falk, Martin; Laisney, François - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2000
We present a new method for imposing and testing concavity of a cost function using asymptotic least squares, which can easily be implemented even for cost functions which are nonlinear in parameters. We provide an illustration on the basis of a (generalized) Box-Cox cost function with six...
Persistent link: https://www.econbiz.de/10005098316
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Educational expansion and its heterogeneous returns for wage workers
Gebel, Michael; Pfeiffer, Friedhelm - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2007
The paper examines the evolution of returns to education in the West German labour market over the last two decades. During this period, graduates from the period of educational expansion in the sixties and seventies entered the labour market and an upgrading of the skill structure took place....
Persistent link: https://www.econbiz.de/10005097603
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A dynamic heterogeneous labour demand model for German manufacturing
Falk, Martin; Koebel, Bertrand M. - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2000
This paper presents an application of the Generalised Error Correction Model (GECM) for heterogeneous factor demands based on the quadratic cost function. Using data for 26 West German manufacturing industries over the period 1976-1995, it turns out that less general specifications such as the...
Persistent link: https://www.econbiz.de/10005097646
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Rising Wage Inequality in Germany
Gernandt, Johannes; Pfeiffer, Friedhelm - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2006
This paper investigates the evolution of wages and the recent tendency to rising wage inequality in Germany, based on …. Wage inequality started to increase around 1994 in Germany for all workers and for prime age dependent male workers as well …. Rising inequality is not the result of the recent rise in self-employment. In West Germany rising inequality occurred in the …
Persistent link: https://www.econbiz.de/10005097705
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Why Pay Seniority Wages?
Zwick, Thomas - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2009
This paper characterises establishments that pay higher seniority wages than their competitors. It tests whether seniority wages are paid on the basis of agency, human capital or efficiency wage considerations. A representative linked employeremployee panel and an innovative two-step estimation...
Persistent link: https://www.econbiz.de/10005097720
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Age-dependent Skill Formation and Returns to Education
Pfeiffer, Friedhelm; Reuß, Karsten - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2007
In this study, we try to connect the economic literature on human capital formation with findings from neurobiology and psychology on early childhood development and self-regulation. Our basic framework for assessing the distribution of agespecific returns to investment in skills is an...
Persistent link: https://www.econbiz.de/10005097739
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Curvature conditions and substitution pattern among capital, energy, materials and heterogeneous labour
Koebel, Bertrand M.; Falk, Martin - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 1999
This study deals with the determinants of factor demand in 27 industries of the manufacturing sector during the period 1978 to 1990. Using a quadratic cost function, six production factors are distinguished : capital, energy, three types of labour and intermediate materials. A parametric test of...
Persistent link: https://www.econbiz.de/10005097784
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Rising Wage Inequality in Germany
Pfeiffer, Friedhelm; Gernandt, Johannes - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2007
The paper investigates the evolution of wages and wage inequality in Germany based on samples from the German Socio … between 1984 and 1994 in West Germany and the wage distribution was fairly stable. Between 1994 and 2005 average wages … increased by 7 percent in West Germany and 18 percent in East Germany. In this period wage inequality, measured by the ratio of …
Persistent link: https://www.econbiz.de/10005097800
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A Test of the 'Krugman Hypothesis' for the United States, Britain, and Western Germany
Puhani, Patrick A. - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2003
large data sets from the U.S., Britain, and western Germany to test the Krugman hypothesis for the 1990s, when unemployment … in Germany increased (unlike in the U.S. and Britain, where it fell). British and German evidence is further backed up … with alternative data sets for these countries. I find evidence for the Krugman hypothesis when Germany is compared to the …
Persistent link: https://www.econbiz.de/10005097817
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Rising Wage Inequality in Germany
Gernandt, Johannes; Pfeiffer, Friedhelm - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2006
The paper investigates the evolution of wages and wage inequality in Germany based on samples from the German Socio … between 1984 and 1994 in West Germany and the wage distribution was fairly stable. Between 1994 and 2005 average wages … increased by 7 percent in West Germany and 18 percent in East Germany. In this period wage inequality, measured by the ratio of …
Persistent link: https://www.econbiz.de/10005097832