中文摘要：

由信息不对称和利益驱动所引发的网络市场信用危机已经成为制约电子商务发展的重要瓶颈,揭示C2C环境下信用的演化过程对互联网管理者制定电子商务发展策略具有重要的现实意义。对C2C环境下交易主体行为进行建模（网络商家和客户）;对C2C市场信用演化过程进行仿真设计;对市场演化过程进行一定的仿真,得出网络商家信用仿真及市场平均信用差仿真运行结果,从而判断交易方数量对C2C市场信用的影响。

英文摘要：

The credit crisis caused by asymmetric information and benefit-driven issues has become the bottleneck of e-commerce development.It is meaningful to reveal the credit evolution process in C2C market,which may offer a decision support for market policy maker.The behavior models of agents,including sellers and customers,are put forward.The process of simulation of credit evolution in C2C market is designed.Based on the simulation process,the simulation of credit evolution is run,and the sellers＇credit and the market average credit deviation are obtained.Thus the influence of the quantity of transaction on credit of C2C market is deduced.