We study how the introduction of a rigorous teacher evaluation system in a large urban school district affects the quality composition of teacher turnovers. With the implementation of the new system, we document increased turnover among the least effective teachers and decreased turnover among...

Successful innovation is essential for the survival and growth of organizations but how best to incentivize innovation is poorly understood. We compare how two common incentive schemes affect innovative per- formance in a field experiment run in partnership with a large life sciences company. We...

The first confirmed case of Coronavirus Disease 2019 (COVID-19) in the US was reported on January 21, 2020. By the end of March, 2020, there were more than 180,000 confirmed cases in the US, distributed across more than 2000 counties. We find that the right tail of this distribution exhibits a...