Many health care systems aim to enhance hospital quality by encouraging competition. However, evidence on the relationship between quality and competition is inconclusive. My contribution to this literature is two-fold. Analyzing the relationship between competition and quality for the German...

Competing hospitals may not only use quality of service to attract patients but also their specialization profile. Applying a Hotelling-duopoly and interpreting respectively quality and specialization as vertical and horizontal differentiation, we analyze the optimal allocation in both...

New empirical evidence shows substantial heterogeneity in the altruism of healthcare providers. Spurred by this evidence, we build a spatial quality competition model with altruism heterogeneity. We find that more altruistic healthcare providers supply relatively higher quality levels and...

This paper considers the role of school closures in the spread of the SARS-CoV-2 virus. To isolate the impact of the closures from other containment measures and identify a causal effect, we exploit variation in the start and end dates of the summer school and fall holiday across the 16 federal...

This study investigates the different cognitive and non-cognitive characteristics associated with individuals’ willingness to get vaccinated against Covid-19 and their actual vaccination status. Our empirical analysis is based on data obtained from three survey waves of about 2,000 individuals...

This study examines the effects of a nationwide shock-responsive social cash transfer scheme during an aggregate shock, with a focus on highly risk susceptible informal sector households in Kenya. Leveraging primary in-person survey data in a doubly robust difference-in-differences framework, we...

We study the impact of the COVID-19 pandemic on domestic violence against women in Germany in 2020. The analysis draws on three data sources: (1) longitudinal administrative data on the volume of help requests to helplines, shelters and counselling services, (2) cross-sectional survey data...