This paper elaborates Russia's international trade on the tendency after economy transformation, commodity structure, trade partners distribution and international trade policy.

The content of this research focuses on investment among China, Japan and Korea, but among these investments, China is importer and Japan and Korea are exporters, so the paper make an analysis of the Japanese and Korean direct investment in China.

Within the past 10 years, the Japanese and Republic of Korean direct investment in China has promoted the bilateral trade between China and Japan, China and Republic of Korea, especially intra-industry and intra-firm trade.

This paper gives an overall analysis of the impacts of the impacts of WTO membership on China's environment according to the final commitments China made for WTO accession.

Among the research of economic cooperation among China, Japan and Republic of Korea, investigation of enterprise is an important part.

The paper reviews the origin and development process of the consumer creditworthiness investigation service in the United States, places emphasis on describing the operation model of the consumer creditworthiness investigation service companies in the States, and summarizes the features of the business operation of the consumer creditworthiness investigation service companies in the States.

The paper carries out empirical study into basic features of the structure of industries with foreign investment in China, its role and the mechanism determining the sectoral distribution of foreign investment.