The Regression Analysis of Stock Market Investment Income on the Introduction of Dummy Variables

摘要

In recent years, the great fluctuations of the stock market both at home and abroad, have been making the risk of stock market investment more prominent. Since birthday of the stock market, the domestic and foreign scholars has done a lot on investment risks of the factors that impact the stock market, but most of the current study ignored the impact of type of industry to the EPS. In this paper, taking many factors that affect the EPS into account, we took the listed companies of northwest China as an example, and used the principal component analysis to capture the key factors. After this we took the key factors for regression analysis. Finally, by adding the dummy variables of type of regression analysis, wo showed the contribution rate of the type of industry to the EPS.