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'…
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…
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…
I analyze a model of directed search in which a consumer inspects a finite number of products sharing attributes with each others. The consumer discovers her valuation for the attributes of the inspected…