After years of stagnation and political cataclysms, Georgia tried to recover by launching radical economic and political reforms starting in 2004. The results of the reforms appeared to be impressive. The country's GDP has more than doubled; the total volume of bank deposits is five times what it...

During the first wave of the COVID-19 pandemic, Shanghai implemented lockdown measures to stop transmission of the virus. Over 26 million residents, including 0.8 million children aged 3-6, were confined at home. This study leveraged a city-wide cohort of preschool children - the Shanghai...

During the first wave of the COVID-19 pandemic, Shanghai implemented lockdown measures to stop transmission of the virus. Over 26 million residents, including 0.8 million children aged 3-6, were confined at home. This study leveraged a city-wide cohort of preschool children - the Shanghai...

Nonmedical exemptions from school-entry vaccine mandates are receiving increased policy and public health scrutiny. This paper examines how expanding the availability of exemptions influences vaccination rates in early childhood and academic achievement in middle school. We leverage 2003...

This paper studies the effect of the end of school summer breaks on SARS-CoV-2 cases in Germany. We exploit variation in the staggered timing of summer breaks across federal states which allows us to implement an event study design. We base our analysis on official daily counts of confirmed...

We use event-study models based on staggered summer vacations in Germany to estimate the effect of school re-openings after the summer of 2021 on the spread of SARS-CoV-2. Estimations are based on daily counts of confirmed coronavirus infections across all 401 German counties. Our results are...

Schulen tragen nicht zu den im Moment steigenden Corona-Fallzahlen bei. Das Wiederöffnen der Schulen nach den deutschen Sommerferien trug vermutlich sogar dazu bei, dass die Inzidenzzahlen niedriger geblieben sind, als sie bei geschlossenen Schulen gewesen wären. Die obligatorischen...

Starting in 2009, the German state of Saxony distributed sports club membership vouchers among all 33,000 third graders in the state. The policy's objective was to encourage them to develop a long-term habit of exercising. In 2018, we carried out a large register-based survey among several...

Starting in 2009, the German state of Saxony distributed sports club membership vouchers among all 33,000 third graders in the state. The policy's objective was to encourage them to develop a long-term habit of exercising. In 2018, we carried out a large register-based survey among several...

After years of stagnation and political cataclysms, Georgia tried to recover by launching radical economic and political reforms starting in 2004. The results of the reforms appeared to be impressive. The country's GDP has more than doubled; the total volume of bank deposits is five times what it...