In this paper, we experimentally investigate the effect of public consumer ratings on market outcomes in credence goods markets. Contrary to search or experience goods, consumers cannot evaluate all dimensions of trade for credence goods, which may inhibit the information and reputation-building...

This paper shows that a transaction tax makes trades in decentralized markets more information sensitive and enlarges the range of information costs for which the equilibrium exhibits private information acquisition and endogenous adverse selection. A transaction tax reduces the probability of...

We report the results of an experiment to systematically investigate the influence of different settings in credence good markets on opportunism in the sellers' decisions. We find that, as predicted by a cognitive dissonance model, the specific choice of the design features might be less...

In markets for credence goods - such as health care or repair services - fraudulent behavior by better informed experts is a common problem. Our model studies how four common features shape experts' provision behavior in credence goods markets: (i) diagnostic uncertainty of experts; (ii)...

Credence goods markets are prone to fraudulent behavior and market inefficiencies due to informational asymmetries between sellers and customers. We examine experimentally the effects of diagnostic uncertainty and insurance coverage on the information acquisition and provision decisions by...

As we have demonstrated in a recent laboratory experiment [see Sebald and Walzl (2012)], individuals tend to sanction others who subjectively evaluate their performance whenever this assessment falls short of the individual's self-evaluation even if their earnings are unaffected by the...

We conduct a laboratory experiment with agents working on and principals benefitting from a real effort task in which the agents' performance can only be evaluated subjectively. Principals give subjective performance feedback to agents and agents have an opportunity to sanction principals. In...

Evidence on behavior of experts in credence goods markets raises an important causality issue: Do "fair prices" induce "good behavior", or do "good experts" post "fair prices"? To answer this question we propose and test a model with three seller types: "the good" choose fair prices and behave...

We study the incentives of oligoplistic firms to share private information on demand parameters. Differently from previous studies, we consider bilateral sharing agreements, by which firms commit at the ex-ante stage to truthfully share information. We show that if signals are i.i.d., then...

Informational asymmetries abound in economic decision making and often provide an incentive for deception through telling a lie or misrepresenting information. In this paper I use a cheap-talk sender-receiver experiment to show that telling the truth should be classified as deception too if the...