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作者：Bereby-Meyer, Yoella; Roth, Alvin E.
作者单位：Ben-Gurion University of the Negev; Harvard University; Harvard University
摘要：In an experiment, players' ability to learn to cooperate in the repeated prisoner's dilemma was substantially diminished when the payoffs were noisy, even though players could monitor one another's past actions perfectly. In contrast, in one-time play against a succession of opponents, noisy payoffs increased cooperation, by slowing the rate at which cooperation decays. These observations are consistent with the robust observation from the psychology literature that partial reinforcement (addi...
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作者：Mandler, Michael
作者单位：University of London; Royal Holloway University London
摘要：By taking sets of utility functions as primitive, we define an ordering over assumptions on utility functions that gauges their measurement requirements. Cardinal and ordinal assumptions constitute two levels of measurability, but other assumptions lie between these extremes. We apply the ordering to explanations of why preferences should be convex. The assumption that utility is concave qualifies as a compromise between cardinality and ordinality, while the Arrow-Koopmans explanation, suppose...
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作者：Maggi, Giovanni; Morelli, Massimo
作者单位：Princeton University; University System of Ohio; Ohio State University; University System of Ohio; Ohio State University
摘要：Some international organizations are governed by unanimity rule, others by (simple or qualified) majority rules. Standard voting models, which assume that the decisions made by voting are perfectly enforceable, have a hard time explaining the observed variation in governance mode, and in particular the widespread occurrence of the unanimity system. We present a model whose main departure from standard voting models is that the organization cannot rely on external enforcement mechanisms: each c...
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作者：Beaudry, Paul; Portier, Franck
作者单位：University of British Columbia; National Bureau of Economic Research; Universite de Toulouse
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作者：Finkelstein, Amy; McGarry, Kathleen
作者单位：Massachusetts Institute of Technology (MIT); National Bureau of Economic Research; University of California System; University of California Los Angeles
摘要：We demonstrate the existence of multiple dimensions of private information in the long-term care insurance market. Two types of people purchase insurance: individuals with private information that they are high risk and individuals. with private information that they have strong taste for insurance. Ex post, the former are higher risk than insurance companies expect, while the latter are lower risk. In aggregate, those with more insurance are not higher risk. Our results demonstrate that insur...
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作者：Che, Yeon-Koo; Gale, Ian L.
作者单位：Columbia University; University of Wisconsin System; University of Wisconsin Madison; Georgetown University
