1. ZEW Discussion Paper No. 97-10 // 1997

    Vertical Relations between Firms and Innovation: An Empirical Investigation of German Firms

    Joint ventures between firms as part of innovation projects can be seen as a strategy to deal with market failure and other insufficiencies of technology markets. It is the objective of this paper to examine…

  2. ZEW-Wirtschaftsanalysen Vol. 8 // 1997

    Nachhaltigkeit

  3. ZEW Discussion Paper No. 97-30 // 1997

    Exploring the Tail of Patented Invention Value Distributions

    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…

  4. ZEW Discussion Paper No. 97-29 // 1997

    Interpreting Estimation Results of Euler Equation Investment Models when Factor Markets are Imperfectly Competitive

    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…

  5. ZEW Discussion Paper No. 97-27 // 1997

    Citation Frequency and the Value of Patented Innovation

    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…