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. 26-014 // 2026

    Opt-in or Opt-out? The Power of Defaults in Pension Enrollment Choices

    Default settings strongly increase pension enrollment, especially when savings incentives are high and choices are complex. We show that the effect is weaker when incentives are low, options are simple, and…

  2. ZEW Discussion Paper Nr. 26-013 // 2026

    Clusters of Excellence and Science Spillovers to Industry: Evidence From Additive Manufacturing

    Competitive public research funding is an important policy instrument to foster scientific progress. The effective design of such funding schemes and whether they generate knowledge spillovers to industrial…

  3. ZEW Discussion Paper Nr. 26-012 // 2026

    Excess Profit Taxes in Times of Crisis: The Example of the Inframarginal Revenue Cap in the EU Electricity Market

    We conduct a data-based policy evaluation of the first large-scale, EU-wide excess profit tax, implemented during the 2022 European energy crisis to tax the windfall profits of inframarginal electricity…

  4. ZEW Discussion Paper Nr. 26-011 // 2026

    Decarbonizing a Portfolio of Operating Assets: Cost Estimates for Vehicle Fleets

    Companies across industries seek to assess the costs of complying with environmental regulations and meeting voluntary emission targets. This paper develops a carbon abatement cost model for firms operating a…

  5. ZEW Discussion Paper Nr. 26-010 // 2026

    Did the Defend Trade Secrets Act Spur the Reliance on Trade Secrets?

    This paper explores whether the U.S. Defend Trade Secrets Act (DTSA) increased the declaration of trade secrets. Leveraging cross-sectoral variation in the importance of trade secrets prior to the DTSA,…

  6. ZEW Discussion Paper Nr. 26-009 // 2026

    The Effect of Global Anti-Tax Avoidance Efforts on Sub-National Profit Shifting

    This paper examines whether multinational enterprises (MNEs) adapt to international anti–tax avoidance regulation by intensifying domestic profit shifting activities. We compile a novel dataset by mapping MNE…

  7. ZEW Discussion Paper Nr. 26-008 // 2026

    Distance Matters: Geographical Proximity and Fiscal Rules Enforcement

    A reform in the German state of Hesse selectively shifted the responsibility for overseeing and enforcing a balanced budget rule at the municipal level. Oversight was transferred from politically affiliated…

  8. ZEW Discussion Paper Nr. 26-007 // 2026

    Transfer Price Documentation Rules and Multinational Firm Behavior – Evidence from France

    In recent years, a growing number of countries have enacted tax rules that require multinational enterprises (MNEs) to document their intra-firm trade prices and show that they are set as in third-party trade.…

  9. ZEW Discussion Paper Nr. 26-006 // 2026

    Fundamentally Reforming the DI System: Evidence From Germany

    In 2001, Germany abolished public occupational disability insurance (ODI)—the second tier of its public DI system—for cohorts born after 1960. Using administrative data, we first document that, in the long run,…