Pre-investment Economic Evaluation Theory Research

Since the reform and opening up, our country's economy has been developed fast. Some studies show us that investment gives a great impetus to the economy. Therefore, the process of the economy's development is also the increasing process of the investment. As one of the important parts of the many work being done before the decision of the investment, economic evaluation plays a key role. Whereas, there are some theories, methods and indexes in the economic evaluation theory system, which are not adaptable to the new accounting system, the investing and financing system and the development of our country's economy. So an in-depth study of the economic evaluation theory is necessary.At the beginning of this paper, it points out the insufficiencies in the economic evaluation. Next, as a premise, this paper introduces the basic conceptions of the investment and evaluation. And then, as the key part of this paper, it, according the logic step of the economic evaluation, discusses the related problems about determination of the basic data and the parameters, financial analysis indexes and methods, economic analysis indexes and methods, and the indexes and methods which are used in comparing and choosing more than one projects. Finally, an example of passenger station construction project is quoted to test the result of this study.