1. Refereed Journal // forthcoming

    Birth Cohort Size Variation and the Estimation of Class Size Effects

    We show that in school systems with grade retention or redshirting birth cohort size is negatively related to the grade-level share of students who are too old for their grade. This compositional effect gives…

  2. Discussion and Working Paper // forthcoming

    Endogenous worst-case beliefs in first-price auctions

    Bidding in first-price auctions crucially depends on the beliefs of the bidders. We analyze bidding behavior in a first-price auction in which the knowledge of the bidders about the distribution of the values of…

  3. Refereed Journal // 2025

    Computers as Stepping Stones? Technological Change and Equality of Labor Market Opportunities

    This  paper  analyzes  whether  technological  change  improves  equality  of  labormarket opportunities by increasing the returns to skills relative to the returns toparental background.  We find that in…

  4. ZEW Discussion Paper No. 24-070 // 2024

    Matching for Credit: Identifying Information Asymmetries in Joint-Liability Lending

    Microcredit, a financial tool providing uncollateralized loans to low-income individuals, has seen a shift from joint-liability (JL) to individual liability (IL) lending models. This article tests a theory…

  5. ZEW policy brief No. 24-20 // 2024

    Klimakonferenz in Baku: Mehr Reziprozität in der internationalen Klimapolitik

    Das Pariser Klimaabkommen sieht vor, die globale Erderwärmung auf unter 2°C gegenüber dem vorindustriellen Niveau zu begrenzen. Eine Herausforderung, deren Erfolg von der internationalen Kooperation der…

  6. ZEW Discussion Paper No. 24-065 // 2024

    More Frequent Commitments Promote Cooperation, Ratcheting Does Not

    International climate negotiations have so far failed to produce ambitious climate cooperation. We combine laboratory experiments with simulations to investigate the performance of two negotiation design…