Interactions between Internet users or network nodes mostly consist of requests. Thus, virtual communities and newsgroup, but also data transmission through Internet networks, rest on systems of bilateral or multilateral requests. This representation of Internet allows us to study the best...

This paper reports the results of a laboratory experiment that aims at investigating the effect of manipulating reputation in the context of online decentralized feedback systems, such as eBay. Our experimental results indicate that the agents do not hesitate to manipulate their reputation even...