This paper considers identification and estimation of a general model for online price competition. We show that when the number of competing firms is unknown, the underlying parameters of the model can still be identified and estimated employing recently developed results on measurement errors....

We examine the equilibrium interaction between a market for price information (controlled by a gatekeeper) and the homogenous product market it serves. The gatekeeper charges fees to firms that advertise prices on its Internet site and to consumers who access the list of advertised prices....

Recommended readings (Machine generated): Michael R. Baye and John Morgan (2001), 'Information Gatekeepers on the Internet and the Competitiveness of Homogeneous Product Markets', American Economic Review, 91 (3), June, 454-74 -- Jean-Charles Rochet and Jean Tirole (2003), 'Platform Competition...

This paper examines four million daily price observations for more than 1,000 consumer electronics products on the price comparison site <externallink id="http://Shopper.com" type="url">http://Shopper.com</externallink>. We find little support for the notion that prices on the Internet are converging to the 'law of one price.' In addition, observed levels of...

Price dispersion is ubiquitous in settings that closely approximate textbook Bertrand competition. We show that only a little bounded rationality among sellers is needed to rationalize such dispersion. A variety of statistical tests, based on datasets from two independent laboratory experiments...