| The exploiting and utilizing scale of urban underground space is increasingly enlarging. The development of economy and technology causes urban underground space, as a kind of economic resource, to become more and more rare. The relative price of urban underground space greatly rises. Now , because of the lack of the property right of urban underground space, their anticipation of ascription and income disagrees, when individual is contending for the it. The property right of underground space is in disequilibrium. Surrounding the exploiting and utilizing of underground space ,the conflict of individual is emerging in endlessly and becoming acute. The property right of urban underground space arouses more and more people's attention. So ,it is a exigent problem to reslove, that how to establish the property right of underground space to settle these acute and abundant of conflict ,and to make urban underground space normally circulate in the market and bring into play it's all efficiencies in economy and aerial defence.The essay takes game theory for means and combines the statua of urban underground space to builds a modle of dynamic game of complete information. At first, the modle analyses the game of correlative individual, and the result indicates that the game between developers and owners does't creat the property right of underground space. So , the government must join the game as a implementary third party. After the government entering ,The result of the game shows that if the government takes part in the game and brings into play it's authority and compulsion, rational developers and owners don't disobey the property right of underground space. Finally , the property right of urban underground space comes into being, and the government , developers and owners all achieve their intention from the equilibrium of the game. |