Research on Abnormal Asset Growth of American Stock Market Based on Multidimensional System

In order to further explore the specific situation of the abnormal growth of the US stock market and the solutions, this paper proposes a research on abnormal asset growth of American stock market based on multidimensional system. This research is based on the theory put forward by Cooper et al. And takes the future abnormal return of American stock market from 1968 to 2003 as a powerful predictor. Based on this, the research also systematically analyzes Cooper's test method, and according to Cooper's test method, the annual asset growth rate of American enterprises from 1968 to 2003 is ranked. The research results show that this research can indeed explore the growth of the US stock market over the years and the logic behind the abnormal growth of the US stock market. In addition, the research results also show that after 2004, there is no abnormal asset growth in the US stock market, which also provides data support and theoretical support for other researchers.