ZEW Discussion Papers

This paper examines return predictability when the investor is uncertain about the right state variables. A novel feature of the model averaging approach used in this paper is to account for finite-sample bias…

This study tests for financial constraints on R&D investment and how they differ from capital investment. To identify constraints in the access to external capital, we employ a credit rating index. Our models…

Many studies investigate the relationship between R&D expenditures as an input and patents as an intermediate product or output of a knowledge production function. We suggest that the productivity of research…

This paper provides firm-level evidence for the relationship between the age structure of the workforce and the adoption of new or significantly improved technologies in service sector firms. Furthermore, it…

Using data from the German Socio-Economic Panel for the years 2000 to 2006 we analyze the determinants and labor market effects of educational dropout. In addition to classical variables like family background…

Labour market reforms that are designed to stimulate labour supply at the lower end of the wage distribution can never be precisely restricted to affect only the target group. Spillovers to and feedback from…

Gaining access to technological assets and patents, in particular, has long been a major motive and objective for firm acquisitions. On the one hand, patents are used as a building instrument for the…

Deutschland weist unter allen entwickelten Volkswirtschaften die höchste Arbeitslosenquote Älterer im Vergleich zur durchschnittlichen Arbeitslosenquote auf. Ältere haben größere Schwierigkeiten, nach einer…

Die vorliegende Arbeit sucht nach einer Erklärung für eine asymmetrische Kostenweitergabe von Input-Preisen an einer Strombörse. G. Zachmann und C. v. Hirschhausen [2008], konnten zeigen, dass…