Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/33778
Authors: 
Cabrales, Antonio
Charness, Gary
Villeval, Marie-Claire
Year of Publication: 
2006
Series/Report no.: 
IZA Discussion Papers 2296
Abstract: 
We devise an experiment to explore the effect of different degrees of competition on optimal contracts in a hidden-information context. In our benchmark case, each principal is matched with one agent of unknown type. In our second treatment, a principal can select one of three agents, while in a third treatment an agent may choose between the contract menus offered by two principals. We first show theoretically how these different degrees of competition affect outcomes and efficiency. Informational asymmetries generate inefficiency. In an environment where principals compete against each other to hire agents, these inefficiencies remain. In contrast, when agents compete to be hired, efficiency improves dramatically, and it increases in the relative number of agents because competition reduces the agents' informational monopoly power. However, this environment also generates a high inequality level and is characterized by multiple equilibria. In general, there is a fairly high degree of correspondence between the theoretical predictions and the contract menus actually chosen in each treatment. There is, however, a tendency to choose more 'generous' (and more efficient) contract menus over time. Competition leads to a substantially higher probability of trade, and that, overall, competition between agents generates the most efficient outcomes
Document Type: 
Working Paper

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