1. ZEW Discussion Paper No. 08-050 // 2008

    Technological Uncertainty and Cost-effectiveness of CO2 Emission Trading Schemes

    This paper studies implications of uncertainty about the arrival date of a competitive CO2 backstop technology for the design of cost-effective CO2 emission trading schemes. For this purpose, we develop a…

  2. ZEW Discussion Paper No. 08-049 // 2008

    Employment Impacts of EU Biofuels Policy: Combining Bottom-up Technology Information and Sectoral Market Simulations in an Input-output Framework

    This paper analyses the employment consequences of policies aimed to support biofuels in the European Union. The promotion of biofuel use has been advocated as a means to promote the sustainable use of natural…

  3. ZEW Discussion Paper No. 08-048 // 2008

    International Stock Return Predictability Under Model Uncertainty

    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…

  4. ZEW Discussion Paper No. 08-047 // 2008

    R&D Investment and Financing Constraints of Small and Medium-Sized Firms

    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…

  5. ZEW Discussion Paper No. 08-046 // 2008

    The Knowledge Production of 'R' and 'D'

    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…

  6. Non-Refereed Journal // 2008

    Bildung als Wirtschaftsfaktor: Was wäre, wenn das Land die Schulen schließt?

    Die Schülerzahlen gehen zurück, die digitale Interaktion nimmt zu, und die Diskussion um die Bedeutung der Familie für die Humankapitalbildung nagt an der Schule. In diesem Beitrag beschäftige ich mich mit der…

  7. Contributions to Edited Volumes and Conference Proceedings // 2008

    Ungleichheit und die differentiellen Erträge frühkindlicher Bildungsinvestitionen im Lebenszyklus

    Um Hinweise für die Erträge von Investitionen in die Fähigkeiten von Kindern im Vorschulalter geben zu können, möchten wir in diesem Beitrag die Ergebnisse von Simulationen zur Diskussion stellen. Der…