The randomized trial literature has helped to renew the fields of microeconometric policy evaluation by emphasizing identification issues raised by endogenous program participation. Measurement and attrition issues have perhaps received less attention. This paper analyzes the dramatic impact of...

Contracting out public services to private firms has ambiguous effects when quality is imperfectly observable. Using a randomized experiment over a national sample in France, we compare the efficiency of the public employment service (PES) vs. private providers in delivering very similar...

This paper investigates whether increases in the minimum wage in France have the same impact on the average wage when intended to preserve the purchasing power of the minimum wage as when intended to raise it. We find that the impact of the minimum wage on the average wage is strong, but differs...