Publications of the Research Unit Labour Markets and Social Insurance

  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. 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…

  3. ZEW Discussion Paper No. 24-011 // 2024

    Sick Leave and Medical Leave in the United States: A Categorization and Recent Trends

    This article reviews the current debate about sick pay mandates and medical leave in the United States. The United States is one of three industrialized countries that do not guarantee access to paid sick leave…

  4. ZEW policy brief No. 24-04 // 2024

    Die Akademisierung und die Evolution der Lohnstruktur nach Bildungsabschlüssen

    Die Akademisierung nach der Jahrtausendwende hat hohe Wellen in Politik und Wirtschaft geschlagen. Schlagworte wie „Akademikerwahn“ machten die Runde. Vielfach gab es die Befürchtung, dass die Hochschulen am…

  5. ZEW Discussion Paper No. 24-005 // 2024

    De-routinization in the Fourth Industrial Revolution – Firm-Level Evidence

    This paper examines the extent to which aggregate-level de-routinization can be attributed to firm-level technology adoption during the most recent technological expansion. We use administrative data and a novel…

  6. ZEW Discussion Paper No. 24-004 // 2024

    Intergenerational Mobility of Education in Europe: Geographical Patterns, Cohort-Linked Measures, and the Innovation Nexus

    We estimate intergenerational mobility of education for people born 1940-1999 at the subnational level for 40 European countries. The result is a panel of mobility indices for 105 mesoregions (NUTS1), and 215…

  7. Refereed Journal // 2024

    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…

  8. ZEW Discussion Paper No. 23-068 // 2023

    High-Profile Crime and Perceived Public Safety: Evidence From Cologne’s New Year’s Eve in 2015

    This study analyses the impact of a high-profile crime event on perceived public safety. At the 2015 New Year's Eve celebrations in Cologne (NYE), Germany, refugees allegedly committed over a thousand crimes,…