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Статья

Sequential Consumer Search with Incompletely Informed Consumers

RAND Journal of Economics. 2011. Vol. 42. No. 3. P. 444-470.
Janssen M. C., Pichler P., Weidenholzer S.

This article analyzes a sequential search model where firms face identical but stochastic production costs, the realizations of which are unknown to consumers. We characterize a perfect Bayesian equilibrium satisfying a reservation price property and provide a sufficient condition for such an equilibrium to exist. We show that (i) firms set on average higher prices and make larger profits compared to the scenario where consumers observe production costs, (ii) expected prices and consumer welfare can be non-monotonic in the number of firms, and (iii) the impact of production cost uncertainty vanishes as the number of firms becomes very large.