Changes

*Baye, Michael R., John Morgan, and Patrick Scholten (2006), "Information, Search, and Price Dispersion," Handbook of Economics and Information Systems (T. Hendershott, ed.), Elsevier Press, Amsterdam. *Diamond , P. (1971), "“A Model of Price Adjustment",” Journal of Economic Theory, 3, 156-168.*Reinganum , J.F. (1979), "“A Simple Model of Equilibrium Price Dispersion",” Journal of PoliticalEconomy, 87, 851-858.*Rothschild , M. (1974), "“Searching for the Lowest Price When the Distribution of Prices is Unknown",”Journal of Political Economy, 82(19734), 689-711*Stigler , G. (1961), "“The Economics of Information", ”Journal of Political Economy, 69 (3), 213-225.