A decision maker (DM) wishes to select a competent candidate to …ll a position.However, since the wage and task of the position is predetermined, the DM cannot usecontract as a screening device. This paper formulates the problem as a class of selectionproblem and derives the optimal selection...

We analyse pricing, e¤ort and tipping decisions in the online service GoogleAnswers. While users set a price for the answer to their question ex ante, theycan additionally give a tip to the researcher ex post.In line with the related experimental literature we …nd evidence that tippingis...

The unmediated call auction is a useful trading mechanism to aggregate dispersedinformation. Its ability to incorporate information of a single informed insider,however, is less well understood. We analyse this question by presenting a simplecall auction game where both auction prices and limit...

In a market with stochastic demand at most one seller can acquire costly informationabout demand. Other sellers entertain idiosyncratic beliefs about the marketdemand and the probability that an informed seller is trading in the market. Theseidiosyncratic beliefs co-evolve with the potential...

We consider guilt averse agents and principals and study the effects ofguilt on optimal behavior of the principal and the agent in a moral hazardmodel.The principal’s contract proposal contains a target effort in addition tothe monetary incentive scheme. By accepting the agreement, the...

The common prior assumption justifies private beliefs as posterior probabilities when updatinga common prior based on individual information. Common priors are pervasive in most economicmodels of incomplete information and oligopoly models with asymmetrically informed firms. Wedispose of the...

In the Yes/No game, like in the ultimatum game, proposer and respondercan share a monetary reward. In both games the proposer suggests a rewarddistribution which the responder can accept or reject (yielding 0-payoffs). Thegames only differ in that the responder does (not) learn the suggested...

This paper examines simple parimutuel betting games under asymmetric information,with particular attention to differences between markets in which bets are submittedsimultaneously versus sequentially. In the simultaneous parimutuel betting market, all(symmetric and asymmetric) Bayesian-Nash...

A robust nding of repeated public goods experiments is that high initialcontribution rates sharply decline towards the end. This paper reports onan exploratory experiment designed to discover whether such a decline is simply triggered by the usual experimental practice of publicly informing...