In recent years social corruption has anincreasingly greater influence on college students spirit College students are facing a destructive crisis in spirit,from ization giving up belief, showing indifference to justice, having no sympathy for others to holding knowledge in contempt, etc.

In the paper,the authors show that if the offender prefers risk neutrality,with any salary the offender will go on corruption when opportunities arise.

With an effectiveness model based on the legal income and the illegal(corruption) income as the variables,an analysis of the maximum effectiveness reveals that the substitution ratio between the legal income and the illegal(corruption) income is controlled by the internal institution which in turn will influence the degree of corruption.

The early Stuart Royalty saw the conspicuous corruptions of England noble officials, which resulted from the change of the England society, the establishment of patronage, the change of the economic policy, the transformation of the social conceptions and the lack of the supervision mechanism.

Through disassembling the simple national income account,it puts forward the view that wealth transfer caused by corruption can t threaten the general national wealth in a short term,but the social cost of corruption can directly reduce general national wealth,and to maximize the national income,corrupt wealth transfer and the social cost of corruption must be minimized.