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Why do people have ambiguity aversion, preferring, a gamble with a 50% chance of success to one whose expected probability of success is 50% but where that 50% is an unbiased estimate? The answer modelled here, in the spirit of the career concerns literature, is learning: a risk-averse person...
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Consider a Bertrand model in which each firm may be inactive with a known probability, so the number of active firms is uncertain. This activity level can be endogenized in any of several ways-- as whether to incur a fixed cost of activity, as output choice, or as quality choice. Our model has a...
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Consider a Bertrand model in which each firm may be inactive with aknown probability, so the number of active firms is uncertain. Thissimple model has a mixed-strategy equilibrium in which industryprofits are positive and decline with the number of firms, the samefeatures which make the Cournot...
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Efficiency wages are wages that exceed a worker's reservation wage. A standard explanation for such wages is "bonding": high wages increase the cost of being discharged for misbehavior and so help ensure worker honesty. A neglected alternative is "satiation": by decreasing the worker's marginal...
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Randolph Sloof (1997) has written a comment on the lobbying-as-signaling model in Rasmusen (1993) in which he points out an equilibrium the author missed and criticizes the author's emphasis on a particular separating equilibrium. In this response, the author discusses how to interpret multiple...
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