With the method of economic analysis,especially from the Edgeworth Box,competitive model was established to find out the possibility of Pareto Improvement for taxi drivers and passengers.

• 利用经济学分析方法；用埃奇沃思盒式图描述交易双方的福利变化；建立均衡时的价格竞争模型；寻求使司机和乘客达到帕累托改进的可能性.