1. ZEW Discussion Paper Nr. 24-035 // forthcoming

    Do Politicians Affect Firm Outcomes? Evidence from Connections to the German Federal Parliament

    We study how connections to German federal parliamentarians affect firm dynamics by constructing a novel dataset to measure connections between politicians and the universe of firms. To identify the causal…

  2. Referierte Fachzeitschrift // forthcoming

    Pandemic Effects: Do Innovation Activities of Firms Suffer from Long-COVID?

    The COVID-19 pandemic exogenously hit many economies early 2020. Exploiting treatment heterogeneity, we use a conditional difference-in-differences design to causally identify how COVID-19 impacted firms'…

  3. Referierte Fachzeitschrift // 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…

  4. Beiträge in Sammel- und Tagungsbänden // forthcoming

    Bewertungskriterien von Fördersystemen aus ökonomischer Sicht

  5. ZEW Discussion Paper Nr. 24-036 // 2024

    Framing Effects in Consumer Expectations Surveys

    In a randomized experiment embedded in a survey, I test the effects of variations in question wording and format on consumer response behavior and the corresponding inflation expectations. To this end, survey…

  6. ZEW Discussion Paper Nr. 24-034 // 2024

    Enhancing Objectivity and Decision Relevance: A Better Framework for Evaluating Cohesion Policies

    By international comparison as well as compared to other EU policies, the EU‘s Cohesion Policy (CP) evaluation system is far developed and institutionalized. This paper analyses the remaining gaps and…

  7. ZEW Discussion Paper Nr. 24-031 // 2024

    Cluster Policy, Innovation, and Firm Productivity. An Econometric Assessment of the Flemish Spearhead Cluster Program

    The Flemish government launched its Spearhead Cluster (SHC) policy in 2017. The aim is to boost strategic sectors by setting up cluster initiatives which coordinate collaborative R&D initiatives. In this paper,…

  8. ZEW-Jahresbericht // 2024

    2023

    Der Nahost-Konflikt, zwei Jahre Ukraine-Krieg, vier Jahre Stagnation – die zunehmend unsichere Lage setzte 2023 Wirtschaft und Gesellschaft zu. Gleichzeitig stehen Deutschland und Europa mit der Energiewende und…