The economic sociology in China analyzes the relations between economy and society and establishes a new comprehensive theoretical framework able to explain experience issues from a new perspective of theoretical integration, that is, the structure of transaction order.

Foreign trade investigation, an operation to safeguard national foreign trade order and fair international trade environments , important means to protect domestic industries, has been paid more and more attention by all WTO members.

A good evaluation index system of urban road and traffic order will help managers understand weak points in their work,and some countermeasures could be set up to improve the level of urban road and traffic management.

Based on the order-driven continuous security market,information structure and differences of opinion,the sequential trading model that researches the formation process of asset price and influences of each factor of information structure on price formation is presented.

In this paper,we establish a simple model to study how the irrational behavior can originate herding in security market within the sequential trading framework.