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Working Paper
Costly Information Intermediation as a Natural Monopoly
In this paper, we show that information trade has similar characteristics to a natural monopoly, where competition may be detrimental to efficiency due either to the duplication of direct costs or the slowing down of information dissemination. We present a model with two large populations in which consumers are randomly matched to providers on a period-by-period basis. Despite a moral hazard problem, cooperation can be sustained through an institution that gives incentives to information exchange. We consider different information pricing mechanisms (membership vs. buy and sell) and different ...
Working Paper
Costly Information Intermediation as a Natural Monopoly
Many markets rely on information intermediation to sustain cooperation between large communities.We identify a key trade-off in costly information intermediation: intermediaries can create trust by incentivizing information exchange, but with too much information acquisition, intermediation becomes expensive, with a resulting high equilibrium default rate and a low fraction of agents buying this information. The particular pricing scheme and the competitive environment affect the direct and indirect costs of information transmission, represented by fees paid by consumers and the expected loss ...
Working Paper
Oligopsonies over the Business Cycle
With a duopsony model, we show how the degree of labor market slack relates to earnings inequality and firm size distribution across local labor markets and the business cycle. In booms, due to the high aggregate productivity, there is fierce competition with resulting high wages and full employment. During recessions, there is labor market slack and firms enjoy local market power. In periods in which the economy is moving in or out of a recession, there is an “accommodation” phase, with firms shrinking their labor forces and paying lower wages instead of competing for poached workers. We ...