The conventional wisdom is that government decentralization promotes policy innovation because it allows for several simultaneous experiments by local governments. However, there is also a learning externality because successful policy experiments provide useful information to all governments....

Discriminatory hiring practices, while of substantial empirical and theoretical interest, are notoriously difficult to document. This paper compares hiring practices in the United States and in Switzerland, using an experimental setup that allows me to isolate the effect of firm decisions on the...