ZEW Discussion Papers

We explore the tail of patented invention value distributions by using value estimates obtained directly from patent holders. The paper focuses on those full-term German patents of the application year 1977…

In this paper the standard Euler equation investment model with imperfectly competitive product markets is extended for imperfectly competitive structures on the factor markets: labour markets and markets for…

Through a survey, economic value estimates were obtained on 962 inventions made in the United States and Germany and on which German patent renewal fees were paid to full-term expiration in 1995. A search of…

The missing effect of investments of firms in information and communication technologies on productivity is studied by various recent papers (e.g. Olinerand Sichels 1994, Landauer 1995, Brynjolfsson and Hitt…

Non technical summaryThe paper provides an overview of some of the recent research on New Technology Based Firms in Germany and covers issues from firm formation dynamics, the regional distribution and location…

We analyze the effectiveness of publicly financed training and retraining programs in east Germany as measured by their effects on individual re-employment probabilities after training. These are estimated by…