但是科斯定理也有待威廉姆森先生去完善并澄清何种交易特征可以让内部交易比市场交易更为有效。
But it was left to Mr Williamson to refine Mr Coase's theory and clarify what features of certain transactions made carrying them out more efficient within a firm rather than in the market.
科斯定理强调在交易费用为零的时候，产权的初始配置不会影响制度的效率。
The Coase theorem emphasizes that the initial distribution of property right will not influence the efficiency of the system when there is no trade cost.
这个模型在使期贷套头交易的实现过程中得以扩展，并且分割定理被用来表明最佳套头交易为零。
This model expands in the achieving process of futures hedging transactions, and the segmentation theorem was used to indicate the best hedging transactions zero.
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