Foster care placement is strongly associated with crime--for example, close to one fifth of the prison population in the United States is comprised of former foster children--yet there is little evidence on whether this relationship is causal. Leveraging the quasi-random assignment of child...

In many market-design applications, a new mechanism is introduced to reform an existing institution. Compared to the design of a mechanism in isolation, the presence of a status-quo system introduces both challenges and opportunities for the designer. We study this problem in the context of...