From the end of 19th century, even in the most years of 20th century, large enterprises had played the main roles in the economic development of the U.S., which has resulted in the traditional views that scale of economy should be the means to improve the economic performance and small and medium-sized enterprises are of little importance in the national economy. However, since the 1970s, the resurgence of small and medium-sized enterprises has appeared in American economy, the ratio of their production in the GDP has gradually risen, and economic status has improved, esp., in the 1990s, they have played very important roles in the aspects of technological innovation, increasing employment, and promoting exportation, etc.Limited by their own characteristics, one of the largest difficulties of developing small and medium-sized enterprises is lacking of capital. Such being the case, the governments and other economic sectors all over the world, either developed or developing countries, have focused on solving this problem. The U.S. has shown a good example. In recent several decades, many high-tech industries have gradually grown out of nothing, and developed from small to large, and finally become the leading industries, which dominating the speed of economic development. This result proves that American small and medium-sized enterprises, esp., high-tech small and medium-sized enterprises, exert themselves to make technological innovation... |