In this paper R2-type measures of the explanatory power of multivariate linear and categorical probit models proposed in the literature are reviewed and their deficiencies are discussed. It is argued that a measure of the explanatory power should take into account the components which are...

We propose a generalized estimating equations approach to the analysis of the mean and the covariance structure of a bivariate time series process of panel data with mixed continuous and discrete dependent variables. The approach is used to jointly analyze wage dynamics and the incidence of...

This study presents a novel empirical approach to identify financing constraints for innovation based on the concept of an ideal test (Hall 2008). Firms were offered a hypothetical payment and were asked to choose between alternatives of use. If they selected additional innovation projects, they...

This study presents a novel empirical approach to identify financing constraints for innovation based on the idea of an ideal test as suggested by Hall (2008). Firms were offered a hypothetical payment and were asked to choose between alternatives of use. If they choose additional innovation...

This paper explores the role of R&D worker mobility on innovation performance. As one main novelty, we employ churning as a measure for worker mobility. Churning depicts the number of workers which are replaced by new ones. It is a very informative indicator since a firm may be exposed to...

The wage effects of fixed-term contracts (FTCs) are analysed with the GSOEP for West Germany. Different estimators which take into account selection bias are used. It is shown that propensity score matching estimators which are usually applied for the evaluation of active labour market...

This study presents a novel empirical approach to identify financing constraints for innovation based on the concept of an ideal test as suggested by Hall (2008). Firms were offered a hypothetical payment and were asked to choose between alternatives of use. If they selected additional...

Using different regional data sources for East Germany the three largest active labour market policy (ALMP) programmes – job creation schemes (JCS), structural adjustment schemes (SAS) and public training (PT) – are evaluated. After addressing the regional allocation rule of the funding of...