http://www.hpl.hp.com/research/scl/papers/crowd/crowd.pdf How to solve the digital commons dilemma. attention social networks reputation crowdsourcing The tragedy of the digital commons does not seem to prevent the copious voluntary production of content that one witnesses in the web. We show through an analysis of a massive data set from Youtube that the productivity exhibited in crowdsourcing exhibits a strong positive dependence on attention, measured by the number of downloads. Conversely, a lack of attention leads to a decrease in the number of videos uploaded and the consequent drop in productivity, which in many cases asymptotes to no uploads whatsoever. Moreover, we observed that uploaders compare themselves to others when having low productivity and to themselves when exceeding a personal threshold. Bernardo A. Huberman, Daniel M. Romero and Fang Wu 2008-09-11 12:00:00 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://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