Price Dispersion in Online Market

Due to incomplete information,price dispersion is a common phenomenon in the market.In online market,the information search cost has been greatly reduced,and now bots appear which can automatically search various information including price information.But the empirical research shows that the trade behavior are more complex in online market than in that in offline market,and price is not the only and most important character,therefore price still dispersion keeps existing,contains more complex customer value.