The prosperous city commercial development and the expanding of sitting merchant in Song Dynasty

In the early China traditional society,itinerant merchant were in the dominant position in the market,but since the song dynasty,itinerant merchant 's power expants day by day. In essence,The occurrence of such a change is the result that the Fang city system collapse and The rapid development of city commercial. In the Environment economy prosperous Song Dynasty commodity,the Characteristic of sitting merchant,such as familiar with the market、On the feedback of market information quickly,decive they are in the leading position in the city market activities. In addition,under the asymmetric information of market,The characteristics of urban sitting merchants have less mobile,high degree of credibility Also make its further development in the fierce competition in the market.