With the combination of judicial practice in China and based on the clear realization of the relevant theories of the system about circumstance alteration,the significance of establishing the system in China Contract Law was discussed from the perspective of the law and economics with including the Coase Theorem Ⅱ,Rational Man Theory and the principle of maximize the benefit.

This paper proposed that the key points for the reform of property rights for hospital structure is clearly defined property rights and reducing transaction cost by citing three definitions of the Coase Theorem and the international experiences,the reform would not necessarily lead to privatization.

This paper analyzes all aspects of the transaction cost involved in land registration system on the basis of the theory of transaction cost and the Coase Theorem and, puts forward the ideas and principles guiding the construction of our country s land restriction system.

The description of The Coase Theorem is always devoid of exactness.

It seems to be true that the first "pollution right" deal case in china is according with the famous "Coase Theory" , however it is not actual.

In this paper,Coase theory is used to analyze the pollution problem in a rubber factory and study the cause of external diseconomies.

On the Contribution of Coase Theorem to Emission Trading;

Mathematical proof and rethinking on Coase Theorem;

Coase theorem isn t a deductive conclusion at all;

According to Skolem theorem,there exist several modes of semantic explanation for any formal system.