ZEW Discussion Papers

We analyze the economic factors which have contributed to the dramatic decline of the employment share of unskilled labor in German manufacturing, in particular the role played by the relatively rigid earnings…

This paper deals with flows of technology and information among people and institutions and the role of public support given by different sponsors (the federal government, the Länder and the European Union).…

In this paper the outlier robustGMM panel data estimator recently proposed byLucas, van Dijk, and Kloek (1994) is applied to anEuler equation model of firm investment behaviourwith imperfectly competitive…

In the 1980s benefit-entitlement periods for older workers with long previous employment have been extended considerably in several steps. At the same time, income replacement ratios have been slightly reduced…

This paper gives a short overview of Monte Carlo studies on the usefulness of Heckman's (1976, 1979) two-step estimator for estimating a selection model. It shows that exploratory work to check for collinearity…

We analyse the Polish wage and unemployment structure between 1992 and 1995 on the basis of the Polish Labour Force Survey. It is shown that within this period wage inequality has stabilised. Surprisingly, wage…

The development of the West German earnings distributionin the 1980's is analysed on the basis of both the German Socio-EconomicPanel and micro-data from the Employment Register of the FederalLabour Office. We…

This paper explores the potential of an approach suggested by Manski of obtaining nonparametric bounds for treatment effects in evaluation studies without knowledge of the participation process. The practicai…