Choose cost, it is the critical factor that selects a system, what expend cost (moving cost, interpose cost, own cost) lowermost arrangement and choice, namely most system choice of economy.

• 选择成本，是选择制度的决定性因素，所费成本（运行成本、干预成本、自主成本）最低的安排和选择，就是最为经济的制度选择。