AAAI Publications, First AAAI Conference on Human Computation and Crowdsourcing

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Winner-Take-All Crowdsourcing Contests with Stochastic Production
Ruggiero Cavallo, Shaili Jain

Last modified: 2013-11-03


We study winner-take-all contests for crowdsourcing procurement in a model of costly effort and stochastic production. The principal announces a prize value P, agents simultaneously select a level of costly effort to exert towards production, yielding stochastic quality results, and then the agent who produces the highest quality good is paid P by the principal. We derive conditions on the probabilistic mapping from effort to quality under which this contest paradigm yields efficient equilibrium outcomes, and demonstrate that the conditions are satisfied in a range of canonical settings.


crowdsourcing, crowdsourcing contests, mechanism design, efficiency, winner-take-all

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