1. ZEW Discussion Paper No. 23-047 // 2023

    Do Refugees Impact Crime? Causal Evidence From Large-Scale Refugee Immigration to Germany

    Does large-scale refugee immigration affect crime rates in receiving countries? We address this question based on the large and unexpected refugee inflow to Germany that peaked in 2015–2016. Arriving refugees…

  2. ZEW Discussion Paper No. 23-046 // 2023

    Regression Discontinuity Evidence on the Effectiveness of the Minimum Legal E-Cigarette Purchasing Age

    Increases in youth vaping rates and concerns of a new generation of nicotine addicts recently prompted an increase in the federal minimum legal purchase age (MLPA) for tobacco products, including e-cigarettes,…

  3. ZEW Discussion Paper No. 23-045 // 2023

    Getting the Right Tail Right: Modeling Tails of Health Expenditure Distributions

    Health expenditure data almost always include extreme values, implying that the underlying distribution has heavy tails. This may result in infinite variances as well as higher-order moments and bias the…

  4. Discussion and Working Paper // 2023

    Favoritism by the Governing Elite

    In this paper, we study the extent to which ministers engage in regional favoritism. We are
    the first to provide a comprehensive analysis of a larger set of the governing elite, not just
    focusing on the primary…

  5. Discussion and Working Paper // 2023

    Bureaucratic Frictions and Innovation Procurement

    Is work overload a friction to public agencies? Using data on R&D procurements, patents, and contracting units from a US federal agency, we investigate how officer workload impacts innovation procurement…

  6. ZEW-Finanzmarktreport // 2023

    November 2023

    • Konjunkturerwartungen steigen weiter bei stabiler Lageeinschätzung
    • Eurozone: Verbesserte Erwartungen bei verschlechterter Lageeinschätzung
    • USA: Sinkende Inflation lässt auf sinkende Zinsen hoffen
    • China:…
  7. ZEW Discussion Paper No. 23-044 // 2023

    Early Patent Disclosure and R&D Investment in Family Firms

    This paper shows that the American Inventor’s Protection Act, which introduced the disclosure of patent applications after 18 months, i.e. before a grant decision is taken and, hence, before it is known whether…

  8. ZEW Discussion Paper No. 23-043 // 2023

    Information Asymmetry and Search Intensity

    In markets where sellers’ marginal costs of production have a common component, they have informational advantage over buyers regarding those costs. This information asymmetry between sellers and buyers is…