This paper indicated that a good relationship between public investment and private investment is very important to the development of high-tech industry in the informationalized society.

And the establishment of private on Administrative Law will surely change the interest structure and advance the democr.

Today the conflict between private and public becomes gradually sharp, whichwas having reflected the personal space and the public space in the city to presentconfusion, isolate and violate mutually.

Based on a theory of club goods, the article makes an economic analysis of the abnormal things happen in the environment realm, which selects ISO14001 environmental management system as the object to study and further demonstrate the probability on common goods of private provision to take place.

Innovation of the system and expansion of the private provision of rural public goods will be a efficient way to alleviate inadequate supply of public goods in rural areas.

In this paper, we will depart from the individual strategy of utility maximum, and analyze the private provision level of public goods in the repeated game through modeling.

A Demonstration research on Substitution of Public Capital to Private Capital in China;

The Productive Efficiency and Regional Disparities of Public Capital and Private Capital;

To finish the investment task in environmental protection during the tenth frive_year plan, it is necessary to introduce private capital.