Research on external benefit evaluation of ecological investment for water conservancy;

The characteristic of external nature about transportation includes external benefit and external cost, the main aim of internalization of external nature is to maximize the social benefit.

The results demonstrate that the policy failure of agricultural land protection lies in the pursuit of external benefit and lack of fair compensation and incentive.

Also the author discusses the externality problem of the benefits of academic journals,and the approaches to resolve the externality problem with the market mechanism and the government intervention,the standards of government interventions and the principles that establish the best intervention modes.

This tendency emerged because the public became more and more aware of the importance of ECE; the externality of ECE was discovered; and the deficiency of ECE market was revealed.

The value relation in educational activities is the basis of educational benefit,which forms the fundamental orientations of the structural system of educational benefit.

We think that the realization of educational efficiency is of great uncertainty.

In reality,equality of education is always associated with the development of society,the cost in education and the educational efficiency.

It is necessary to give logical reflections on the new curriculum reform,such as its theoretical basis,values orientation,thinking mode,and education benefits trying to afford some revelation to the deepening of new curriculum reform.