In two experiments, we examine the effects of employer reputation in an online labor market (Amazon Mechanical Turk) in which employers may decline to pay workers while keeping their work product. First, in an audit study of employers by a blinded worker, we find that working only for good...

Free riding in team production arises because individual effort is not perfectly observable. It seems natural to suppose that greater transparency would enhance incentives. Therefore, it is puzzling that team production often lacks transparency about individual contributions despite negligible...

Young professionals typically do not enter into life-long employment relations with a single firm. Therefore, future employers can learn about individuals' abilities from the observable facts regarding earlier work relations. We show that these informational spill-overs have profound...

Credence goods markets are characterized by asymmetric information between sellers and consumers that may give rise to inefficiencies, such as under- and overtreatment or market break-down. We study in a large experiment with 936 participants the determinants for efficiency in credence goods...

In many economic situations several principals contract with the same agents sequentially. Asymmetric learning about agents' abilities provides the first principal with an informational advantage and has profound implications for the design of incentive contracts. We show that the principal...

We analyze a long-term contracting problem involving common uncertainty about a parameter capturing the productivity of the relationship, and featuring a hidden action for the agent. We develop an approach that works for any utility function when the parameter and noise are normally distributed...

We analyze the costs and benefits of using social image to foster virtuous behavior. A Principal seeks to motivate reputation-conscious agents to supply a public good. Each agent chooses how much to contribute based on his own mix of public-spiritedness, private signal about the value of the...

We analyze the offering, asking, and granting of help or other benefits as a three-stage game with bilateral private information between a person in need of help and a potential help-giver. Asking entails the risk of rejection, which can be painful: since unawareness of the need can no longer be...

This paper analyzes how private decisions and public policies are shaped by personal and societal preferences (values), material or other explicit incentives (laws) and social sanctions or rewards (norms). It first examines how honor, stigma and social norms arise from individuals' behaviors and...

This paper analyzes how private decisions and public policies are shaped by personal and societal preferences ("values"), material or other explicit incentives ("laws") and social sanctions or rewards ("norms"). It first examines how honor, stigma and social norms arise from individuals'...