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dc.contributor.authorJain, Shaili
dc.contributor.authorChen, Yiling
dc.contributor.authorParkes, David C.
dc.date.accessioned2010-08-11T16:05:01Z
dc.date.issued2009
dc.identifier.citationJain, Shaili, Yiling Chen, and David C. Parkes. 2009. Designing incentives for online question and answer forums. In Proceedings of the tenth ACM Conference on Electronic Commerce : July 6-10, 2009, Stanford, California, ed. J. Chuang, 129-138. New York: ACM Press.en_US
dc.identifier.isbn978-1-60558-458-4en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:4340771
dc.description.abstractIn this paper, we provide a simple game-theoretic model of an online question and answer forum. We focus on factual questions in which user responses aggregate while a question remains open. Each user has a unique piece of information and can decide when to report this information. The asker prefers to receive information sooner rather than later, and will stop the process when satisfied with the cumulative value of the posted information. We consider two distinct cases: a complements case, in which each successive piece of information is worth more to the asker than the previous one; and a substitutes case, in which each successive piece of information is worth less than the previous one. A best-answer scoring rule is adopted to model Yahoo! Answers, and is effective for substitutes information, where it isolates an equilibrium in which all users respond in the first round. But we find that this rule is ineffective for complements information, isolating instead an equilibrium in which all users respond in the final round. In addressing this, we demonstrate that an approval-voting scoring rule and a proportional-share scoring rule can enable the most efficient equilibrium with complements information, under certain conditions, by providing incentives for early responders as well as the user who submits the final answer.en_US
dc.description.sponsorshipEngineering and Applied Sciencesen_US
dc.language.isoen_USen_US
dc.publisherAssociation for Computing Machineryen_US
dc.relation.isversionofhttp://portal.acm.org/citation.cfm?id=1566393&dl=ACMen_US
dc.relation.hasversionhttp://www.eecs.harvard.edu/econcs/pubs/jainec09.pdfen_US
dash.licenseLAA
dc.subjectgame theoryen_US
dc.subjectquestion and answer forumsen_US
dc.subjectsocial computingen_US
dc.titleDesigning Incentives for Online Question and Answer Forumsen_US
dc.typeMonograph or Booken_US
dc.description.versionVersion of Recorden_US
dash.depositing.authorParkes, David C.
dc.date.available2010-08-11T16:05:01Z
dc.identifier.doi10.1016/j.geb.2012.11.003
dash.contributor.affiliatedJain, Shaili
dash.contributor.affiliatedChen, Yiling
dash.contributor.affiliatedParkes, David


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