Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/175656 
Authors: 
Year of Publication: 
2015
Series/Report no.: 
Darmstadt Discussion Papers in Economics No. 223
Publisher: 
Technische Universität Darmstadt, Department of Law and Economics, Darmstadt
Abstract: 
We apply various refinements of survival regression to assess the results of some basic specifications based on product life cycle theory for the case of a data set of the German automobile industry. The methods applied pay attention to biases in the coefficient estimates and the standard errors, the discrete nature of the duration data and the presence of unobserved heterogeneity. Robust estimation methods are also applied. We find that that the coefficient estimates and standard errors are not much affected by applying the renewed estimators. The substantial results of a previous study with the same data are unchanged.
Subjects: 
firm survival
Cox regression
robustness assessment
JEL: 
C41
C25
C14
L10
L62
O33
Persistent Identifier of the first edition: 
Document Type: 
Working Paper

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