Does ethical differentiation of products affect market behavior? We examined this issue in triopolistic experimental markets where producers set prices. One producer's costs were higher than the others. In two treatments, the additional costs were attributed to compliance with ethical...

We constructed triopolistic experimental markets where producers set prices. One producer's costs were higher than the others. In two experiments, costs were attributed to compliance with ethical guidelines. In the third, no justification was provided. Consumers paid premia for the ethically...