Background: To help ensure roadway safety, the federal government mandates trucking companies to conduct pre-employment urine drug tests before allowing drivers to operate a commer- cial motor vehicle. Unfortunately, urine testing has a short detection window and is easily thwarted, leading some...

We study the impact of state-owned enterprises (SOEs) on the quality of entrepreneurship in China. Using long series of firm registration and performance data, we document that the massive SOE downsizing in the late 1990s significantly improved the quality of entrepreneur- ship. Compared with...