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Using Quantile Regression for Duration Analysis
Fitzenberger, Bernd; Wilke, Ralf A. - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2005
Quantile regression methods are emerging as a popular technique in econometrics and biometrics for exploring the distribution of duration data. This paper discusses quantile regression for duration analysis allowing for a flexible specification of the functional relationship and of the error...
Persistent link: https://www.econbiz.de/10005097480
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A Note on Implementing Box-Cox Quantile Regression
Wilke, Ralf A.; Fitzenberger, Bernd; Zhang, Xuan - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2004
The Box-Cox quantile regression model using the two stage method introduced by Chamberlain (1994) and Buchinsky (1995) provides an attractive extension of linear quantile regression techniques. However, a major numerical problem exists when implementing this method which has not been addressed...
Persistent link: https://www.econbiz.de/10005097847
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New insights on unemployment duration and post unemployment earnings in Germany: censored Box-Cox quantile regression at work
Fitzenberger, Bernd; Wilke, Ralf A. - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2007
In light of nonstationary search theory (van den Berg, 1990), this paper estimates the effects of benefit entitlement …
Persistent link: https://www.econbiz.de/10005097896
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A Note on Implementing Box-Cox Quantile Regression
Wilke, Ralf A.; Fitzenberger, Bernd; Zhang, Xuan - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2005
The Box-Cox quantile regression model using the two stage method suggested by Chamberlain (1994) and Buchinsky (1995) provides a flexible and numerically attractive extension of linear quantile regression techniques. However, the objective function in stage two of the method may not exists. We...
Persistent link: https://www.econbiz.de/10005097967
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What determines local governments' technical efficiency? The case of road maintenance
Kalb, Alexander - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2009
In this paper we investigate the determinants of local governments' technical efficiency in road maintenance for a … panel of German counties using a broad variety of estimation approaches. More specifically, we calculate efficiency indices … efficiency indices can be explained by estimating and comparing four different regression models. The results of our analysis …
Persistent link: https://www.econbiz.de/10008533551
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Up or out: Research incentives and career prospects of postdocs in Germany
Fitzenberger, Bernd; Leuschner, Ute - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2012
Academic careers in Germany have been under debate for a while. We conduct a survey among postdocs in Germany, to analyze the perceptions and attitudes of postdocs regarding their research incentives, their working conditions, and their career prospects. We conceptualize the career prospects of...
Persistent link: https://www.econbiz.de/10010957708
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Research grants, sources of ideas and the effects on academic research
Hottenrott, Hanna; Lawson, Cornelia - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2012
Based on a sample of research units in science and engineering at German universities, this study reports survey evidence showing that research grants impact research content. Research units that receive funds from industry are more likely to source ideas from the private sector. The higher the...
Persistent link: https://www.econbiz.de/10010957740
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University rankings in action? The importance of rankings and an excellence competition for university choice of high-ability students?
Horstschräer, Julia - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2011
This paper analyzes how high-ability students respond to different indicators of university quality when applying for a university. Are some quality dimensions of a ranking, e.g. research reputation or mentoring more important than others? I estimate a random utility model using administrative...
Persistent link: https://www.econbiz.de/10009369491
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Overqualification of graduates: Assessing the role of family background
Erdsiek, Daniel - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2014
Studies on the underlying mechanisms of social mobility commonly find that half of the intergenerational earnings persistence remains unexplained. Focusing on the phenomenon of overqualification, this study examines a transmission channel that might operate beyond the mechanisms previously...
Persistent link: https://www.econbiz.de/10011139790
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Peer effects in collaborative content generation: The evidence from German Wikipedia
Slivko, Olga - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2014
On Wikipedia, the largest online encyclopedia, editors who contribute to the same articles and exchange comments on articles' talk pages work in collaborative manner engaging in communication about their work. Thus they can be considered as peers who are likely to influence each other. In this...
Persistent link: https://www.econbiz.de/10011139795