http://www.hpl.hp.com/research/scl/papers/reputationExpt/reputation-expts-and-Prosper.pdf How people use reputation information. reputation incentive design experimental economics We evaluated how people use reputation in a laboratory market and in Prosper, an online microfinance business. We found people use information on past behavior to ostracize previous poor performance in both cases. The laboratory market did not show significant price discrimination, but people used their ability to not fulfill contracts to punish poor performers. Price discrimination was significantly correlated with reputation in Prosper. Thus we find people apply multiple strategies to deal with reputation. Kay-Yut Chen, Scott Golder, Tad Hogg and Cecilia Zenteno 2008-08-19 12:00:00 http://arxiv.org/abs/0707.4195 How people perform in an auction using simulated quantum information processing. quantum information incentive design experimental economics We describe human-subject laboratory experiments on probabilistic auctions based on previously proposed auction protocols involving the simulated manipulation and communication of quantum states. These auctions are probabilistic in determining which bidder wins, or having no winner, rather than always having the highest bidder win. Comparing two quantum protocols in the context of first-price sealed bid auctions, we find the one predicted to be superior by game theory also performs better experimentally. We also compare with a conventional first price auction, which gives higher performance. Thus to provide benefits, the quantum protocol requires more complex economic scenarios such as maintaining privacy of bids over a series of related auctions or involving allocative externalities. Kay-Yut Chen and Tad Hogg 2008-08-19 12:00:00 http://www.hpl.hp.com/research/idl/papers/qpdilemma/index.html People can effectively use quantum entanglement to reduce free riding. quantum information game theory experimental economics (click link to view abstract) Kay-Yut Chen and Tad Hogg 2007-01-01 00:00:00 http://www.hpl.hp.com/research/idl/papers/reputationExpt/index.html Revealing past behavior improves market efficiency reputation experimental economics (click link to view abstract) Kay-Yut Chen, Tad Hogg and Nathan Wozny 2007-01-01 00:00:00