The 'ratchet effect' refers to a situation where a principal uses private information that is revealed by an agent's early actions to the agent's later disadvantage, in a context where binding multi-period contracts are not enforceable. In a simple, context-rich environment, we experimentally...

Since the internet's earliest days, firms and workers have used various online methods to advertise and find jobs. Until recently there has been little evidence that any internet-based tool has had a measurable effect on job search or recruitment outcomes. However, recent studies, and the...