科斯定理表明，在交易成本为正的情况下，任何制度包括依法履行的私人合约、法律规定及政府规制（ regulation)，都可能达到有效的资源配置。本文认为，法律实施者所面临的激励机制决定着最优的制度选择，并阐述选择行政规制而不是以司法程序来实施合约或法律的条件。本文还将 Coase’s theorem shows that any system, including private contracts, laws and regulations, and government regulation, fulfilled in accordance with the law, may achieve effective allocation of resources under positive transaction costs. This paper argues that the incentive mechanisms faced by law enforcers determine the optimal institutional choices and describe the conditions for choosing administrative regulations rather than judicial or contractual procedures. This article will be