This paper analyzes the fundamental theoretic reasons which bring up American New Economy.

American New Economy and Research on the Model of National Innovative Systems;

Since 1990s, it has led to, in objective reality, all kinds of new achievements and new crisis in American new economy and the world economic globalization, thereby revealing the two-edged economic function of the individual pragmatic rationalism, which has significance for China to improve and perfect the socialist market economic system.

In 1990s, the rapid growing up of new economy of Chinese American caught people s far-ranging attention.

The Comparative Advantage of American Economy Before the Independent War;

Negative influence of RMB revaluation on American economy;

Combining the structure character and history of American economy with current change, this paper thinks that the possibility of recession is tiny because of the strong long-term consumption, the changeability of investment and the less GDP contribution of.

In order to determine the right role played by China s economy after its entry into WTO, the paper makes a thorough disussion and analysis of the perspective of the core-of-the-globe US economy, and from 5 aspeets, analyses the causes of its lack of potential, and suggests measures to be taken by our country facing this situation.

The results indicate that there is a long-term co-integration equation among them and RMB s nominal exchange rate and US economy are Granger cause of the change of China s export to USA;Variance decomposition shows that US economy is the most important fact.

With retrospection on the US economy in the subprime crisis,this paper analyzes the economic situation in EU and Japan,and concludes that euro and yen would remain strong against the US dollar.