Whether pro-social preferences identified in economic laboratories survive in natural market contexts is an important and contested issue. We find that the willingness to buy at a higher price when higher wages are paid to the worker in a laboratory experiment framed as a market exchange...

We study how subjects in an experiment use different forms of public information about their opponents' past behavior. In the absence of public information, subjects appear to use rather detailed statistics summarizing their private experiences. If they have additional public information, they...