Many Internet markets rely on feedback systems', essentially social networks of reputation, to facilitate trust and trustworthiness in anonymous transactions. Market competition creates incentives that arguably may enhance or curb the effectiveness of these systems. We investigate how different...

The economic literature on online auctions is rapidly growing because of theenormous amount of freely available field data, moreover the emergence ofnumerous innovative auction design features on auction platforms such aseBay have created excellent research opportunities. In this article, we...

The internet facilitates interactive and asynchronous communication among human and artificial agents in large bilateral markets. As a consequence, new institutional structures are emerging in the new economy. I discuss a few core problems associated with the economic design of internet markets...