1. ZEW Discussion Paper Nr. 19-035 // 2019

    Visibility of Technology and Cumulative Innovation: Evidence from Trade Secrets Laws

    Innovation depends on the incentives to create new ideas as well as the visibility of and access to existing ones. Using exogenous variation from the Uniform Trade Secrets Act, we show that stronger trade…

  2. ZEW Discussion Paper Nr. 19-034 // 2019

    Restrictions of Fixed Term Employment Contracts: Evidence from a German Reform

    This paper examines the impact of legal restrictions on fixed-term contracts on employment, wages and the careers of labour market entrants. Specifically, I analyse a 2001 German reform that made it more…

  3. Referierte Fachzeitschrift // 2019

    Matching Subsidies and Voluntary Contributions: A Review

    This paper provides a synthesis of the experimental literature on matching subsidies in the context of charitable giving. We classify results according to four different outcome variables frequently considered…

  4. ZEW-Newsletter // 2019

    2019-08

    1. Aktuell
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      • Gäste am ZEW
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  5. ZEW Discussion Paper Nr. 19-033 // 2019

    Environmental Innovation and Firm Profitability – An Analysis with Respect to Firm Size

    This paper investigates the effect of environmental innovations on firm profitability with respect to differences between small and medium-sized (SME) and large (LE) enterprises. Using data from the Mannheim…

  6. ZEW Discussion Paper Nr. 19-032 // 2019

    Expectations of Reciprocity when Competitors Share Information: Experimental Evidence

    Informal exchange of information among competitors has been well-documented in a variety of industries, and one's expectation of reciprocity shown to be a key determinant. We use an indeterminate horizon…

  7. ZEW Discussion Paper Nr. 19-031 // 2019

    How Marginal is Lignite? Two Simple Approaches to Determine Price-Setting Technologies in Power Markets

    The impact of energy and climate policies often depends on how the market reacts to the policy, i.e. in terms of prices or costs for downstream industries. Economic theory tells us that in power markets, prices…

  8. ZEW Discussion Paper Nr. 19-030 // 2019

    Sequential Procurement with Limited Commitment

    We analyze the problem of a buyer who chooses a supplier for a long-term relationship via an auction. The buyer lacks commitment to not renegotiate the terms of the contract in the long run. Thus, suppliers are…

  9. ZEW Discussion Paper Nr. 19-029 // 2019

    The 2011 Break in the Part-Time Indicator and the Evolution of Wage Inequality in Germany

    German social security records involve an indicator for part-time or full-time work. In 2011, the reporting procedure was changed suggesting that a fraction of worker recorded to be working full-time before the…