1. ZEW Discussion Paper Nr. 16-092 // 2016

    IT Outsourcing and Firm Productivity: Eliminating Bias from Selective Missingness in the Dependent Variable

    Missing values are a major problem in all econometric applications based on survey data. A standard approach assumes data are missing-at-random and uses imputation methods, or even listwise deletion. This…

  2. Discussion und Working Paper // 2016

    An Unemployment Insurance Scheme for the Euro Area? A Comparison of Different Alternatives using Micro Data

    We analyze different alternatives how a common unemployment insurance system for the euro area (EA) could be designed and assess their effectiveness to act as an insurance device in the presence of asymmetric…

  3. ZEW Discussion Paper Nr. 16-091 // 2016

    The Power of Active Choice: Field Experimental Evidence on Repeated Contribution Decisions to a Carbon Offsetting Program

    We study the effect of a subtle change in the choice architecture on offsetting behavior. In a large-scale field experiment, we examine repeated voluntary contributions to a carbon offsetting program during the…

  4. ZEW Discussion Paper Nr. 16-090 // 2016

    Fuel for Inequality: Distributional Effects of Environmental Reforms on Private Transport

    This paper provides the first empirical evidence of the distributional effects of subsidies for the purchase of alternative vehicles based on an extended version of Hausman's exact consumer surplus. Consistently…

  5. ZEW Discussion Paper Nr. 16-089 // 2016

    The Impacts of the EU ETS on Efficiency – An Empirical Analyses for German Manufacturing Firms

    We investigate the effect of the European Union Emissions Trading System (EU ETS) on the economic performance of manufacturing firms in Germany. Our difference-in-differences framework relies on several…

  6. ZEWnews // 2016

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  7. Gutachten // 2016

    Integrating Refugees in the Rhine-Neckar-Region: Initial Evidence from an Inclusive Soccer Project

    Die Studie untersucht eine Umfrage unter jungen, männlichen Geflüchteten, die entweder an einem integrativen Fußballprojekt teilnehmen oder zur Kontrollgruppe gehören. Die Umfrage wurde als Teil der Evaluation…