Purpose - Current society is competitive society. Rules of the game is applied to every kind of aspects not only business but also academic matters. This research is to analyze competitiveness between China and USA by use of trade related data together with revealed comparative advantage index(RCA) including trade specialization index(TSI). Research design, data, methodology - Per economic phase, both China-USA have mutually complementary character. That's why it is significant to analyze this 2 country's important industry. From our economic viewpoint, Both 2 economic powers should cooperate to achieve partnership in the steel business industry under the severe business competition. Results - This paper will provide which country is more comparatively advantage in case international business is held. Especially, steel industry is in a sense technology related business. Therefore, tied-up up-to-date advanced know-how and technology should be developed to be a leader for one of major industries in the world market. Conclusion - Among those various phenomena, this paper categorizes international business and research boundary is international trade contract. It is available to find out how to cooperate securing permanent and reliable business provider and supplier is essential and eminent for the successful accomplishment in the world steel market.

Purpose - On the basis of discussing the network economy concept and the commentary of the marginal revenue decreasing of traditional economic theory, The concept of network economy has just been put forward in recent years. The reason why such a concept appears is that the information technology, marked by computer network, plays an increasingly important role in economic activities. Some people define network economy as an economic form based on network technology and human capital. this paper points out network economy existing the marginal revenue increasing and analyzes the reasons that influencing the marginal revenue increasing. Research design, data, methodology - The network economy has fundamentally changed the traditional economic laws. The economic basis of industrial society is the law of incremental marginal cost, which reflects the socialization of high cost in industrial society. Results - As the number of network members increases, the value of the network increases explosively, and the value increases attract more members to join, resulting in more returns. Conclusion - In conclusion, network economy has changed many aspects of traditional economy, resulting in decreasing marginal cost, decreasing transaction cost in and out of enterprise organizations, and making the effect of increasing scale compensation more prominent. This is of great significance to the information construction in China.

Purpose - Taxes cover all aspects of society, especially in terms of resource allocation and economic growth. In reality, the tax revenue is often used to measure the quality of a country's economy. The relationship between tax revenue and economic growth has been paid much attention by academic circles. Due to this background, this paper attempts to investigate the mutual effect between tax revenue and economic growth. Research design, data, and Methodology - The annual datum form 1980 to 2017 are employed to conduct an empirical analysis under the vector error correction model. In this paper, the GDP is treated as an independent variable. The tax revenue is treated as a dependent variable. Furthermore, a menu of statistic approaches will be used to testify the mutual effect between tax revenue and economic growth. Results - Via the co-integration test, the results report that the tax revenue has a positive effect on economic growth in the long run. Through the vector error correction estimation, the results also report that the tax revenue also has a positive effect on economic growth in the short run. Conclusions - This paper provides a view that the tax revenue is a kind of a determinant to promote economic growth. Therefore, the China's government should pay much attention to the improvement of tax revenue system so as to maintain a high-speed economic growth.