ZEW Discussion Papers

Mit diesen Beiträgen, die überwiegend in Englisch verfasst sind, beteiligen sich die Forscher/innen des ZEW an wissenschaftlichen Fachdebatten. Die Publikationen enthalten vorläufige Beiträge, die zur Veröffentlichung in Fachzeitschriften vorgesehen sind. Die Discussion Papers können ab 1.1.1998 als pdf-Datei abgerufen werden. Sie richten sich an nationale und internationale Zielgruppen.

  1. ZEW Discussion Paper Nr. 25-071 // 2025

    Using AI Persuasion to Reduce Political Polarization

    Rising political polarization generates significant negative externalities for democratic institutions and economic stability, yet scalable interventions to reduce polarization remain scarce. In this paper, I…

  2. ZEW Discussion Paper Nr. 25-070 // 2025

    Inference for Batched Adaptive Experiments

    The advantages of adaptive experiments have led to their rapid adoption in economics, other fields, as well as among practitioners. However, adaptive experiments pose challenges for causal inference. This note…

  3. ZEW Discussion Paper Nr. 25-069 // 2025

    To Release or Not to Release? Preferences for Home Equity Products in Retirement

    How do retirees choose among home equity release products? Despite housing wealth being households’ largest asset, little is known about preferences for different equity release products. We conduct a survey…

  4. ZEW Discussion Paper Nr. 25-068 // 2025

    VAT Collection Only at the Retail Stage: Evidence on Tax Compliance

    We investigate whether firms engage in VAT evasion at the retail stage—typically a point of weakness in VAT systems—in a high-enforcement, low-informality setting. To measure evasion, we exploit a reform of VAT…

  5. ZEW Discussion Paper Nr. 25-067 // 2025

    Harnessing Deductions to Increase Tax Compliance and Formalization

    We evaluate a tax reform in Ecuador that introduced generous deductions from personal income taxes (PIT), encouraging consumers to request receipts. The reform addresses tax evasion by targeting small…

  6. ZEW Discussion Paper Nr. 25-066 // 2025

    Effects of the Reverse Charge Mechanism on VAT Gaps

    The purpose of this paper is to evaluate the effect of reverse-charge mechanism (RCM) implementation on VAT compliance using an overall, countrylevel measure of VAT compliance, the VAT gap. The VAT gap is…

  7. ZEW Discussion Paper Nr. 25-065 // 2025

    Fair Market Value of Used Capacity Assets: Forecasts for Repurposed Electric Vehicle Batteries

    In response to growing economic and environmental concerns, companies in a range of industries seek to repurpose products (assets) that retain functional capacity beyond their initial first life. This paper…

  8. ZEW Discussion Paper Nr. 25-063 // 2025

    Financial Socialization and the Gender Investment Gap

    Women are significantly less likely to participate in the stock market than men. We show that financial socialization plays an important role in explaining this gap. Survey data from Germany and the U.S.…

  9. ZEW Discussion Paper Nr. 25-062 // 2025

    Intangible Assets and Productivity at the Firm Level: R&D versus non-R&D Intangibles

    Intangible assets have increasingly been identified as a main source of productivity gains. Since the pioneering work by Corrado, Hulten, and Sichel (2005), empirical research has largely focused on macro and…

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