Childhood obesity is one of the most serious public health challenges of the twenty-first century. While small-scale experiments change behaviors among adults in the short run, we know little about the…

We present a simple model, illustrating how democracy may improve the quality of the economic institutions. The model further suggests that institutional quality varies more across autocracies than across…

This study demonstrates the importance of accounting for correlated unobserved heterogeneity to correctly identify the relevance of career and education for fertility decisions. By exploiting individual-level…

Employment responses to the COVID-19 crisis differed widely across German local labour markets at the beginning of the pandemic, with differences in short-time work rates of up to 20 percentage points. We show…

We analyze the problem of a buyer who chooses a supplier for a two-period production project. The buyer lacks the commitment not to renegotiate the contractual terms in the second period. The prospect…

In an artefactual field experiment with a large and heterogeneous non-student population sample, we test the implications of social norms for market interactions associated with negative real- …

We study differences in the returns to R&D investment between German manufacturing firms that sell in international markets and firms that only sell in the domestic market. Using firm-level data for five…