1. Refereed Journal // 2026

    The effects of public procurement requirements and voluntary standards on environmental product innovation

    Public procurement requirements and voluntary standards are increasingly used to foster
    environmental product innovations. However, quantitative evidence on their individual and
    joint effects is absent, and their…

  2. #ZEWPodcast // 2026

    “Germany Must Not Squander Opportunities”

    The German economy has not grown since the coronavirus pandemic began. In their latest annual report, the German Council of Economic Experts therefore calls for prospects to be created for tomorrow, while at the…

  3. #ZEWPodcast // 2026

    (Concise) “We Have Missed Out on Some Developments” (in German language)

    The German economy has not grown since the coronavirus pandemic began. In their latest annual report, the German Council of Economic Experts therefore calls for prospects to be created for tomorrow, while at the…

  4. Refereed Journal // 2026

    Doubling Down Political Budget Cycles: The Role of State-Owned Enterprises

    We study the degree and nature of political budget cycles in public investments when two instruments are available: investments by core governments and, more indirectly, by state-owned enterprises (SOEs). While…

  5. Refereed Journal // 2026

    I'm a taxpayer … get me out of here? Evidence on attitudes towards simplifying the tax jungle

    Why are tax systems complex despite a conventional wisdom that simplification is desirable? We study attitudes towards tax simplification using new survey and experimental data. We first document that most…

  6. Refereed Journal // 2026

    Stationary Bandits, State Capacity, and the Malthusian Transition: The Lasting Impact of the Taiping Rebellion

    We examine the long-term regional development effects of the Taiping Rebellion (1850–1864), one of the deadliest civil wars in human history and a critical juncture in China’s path toward modernity. Our analysis…

  7. Refereed Journal // 2026

    The EU’s new era of “fair company taxation”: the impact of DEBRA and Pillar Two on the EU Member States’ effective tax rates

    The European Union (EU) recently implemented the Minimum Tax Directive (Pillar Two) to ensure that profits of large companies are at least taxed at 15%. At the same time, the European Commission proposed the…

  8. Refereed Journal // 2026

    Congestion Management Games in Electricity Markets

    This paper proposes a game-theoretic model to analyze the strategic behavior of inc-dec gaming in market-based congestion management (redispatch). We extend existing models by considering incomplete information…

  9. Refereed Journal // 2025

    The global software production network

    Can developing countries benefit from exporting opportunities in the growing sector of tradable services, given the near free information flow via the internet and wage differentials relative to developed…

  10. Refereed Journal // 2025

    Immigration and the Top 1 Percent

    Using administrative data on the universe of U.K. taxpayers, we study the contribution of migrants to the rise in U.K. top incomes. We show that migrants are over-represented at the top of the income…