Listed Companies Inter-industry Empirical Research, And Risk In The Industry

Since entering WTO, China has faced the situation that world economic globalization and competition is increasingly deepened. Meanwhile, the corporation's survival and developing environment has experienced great changes, especially the complexity of competitive environment, limit of decision-making condition and managing level and multiple operating goals. So it's crucial for decision maker and manager to pay more attention on risk while managing and making decision.Risk exists anywhere and anytime. On the one hand, people are frightened to flinch at the potential losses which are caused by risk. On the other hand, the return which is caused by risk has badgered people into scrambling for it. Risk has a world of influence upon society and human beings.Generally speaking, we use Beta coefficient to stand for corporation's risk. Beta coefficient is a kind of tools to evaluate security's systemic risk. This paper takes three steps. Firstly, figure out Beta coefficient of all stock companies in Shanghai Stock Exchange by using data of companies'yield and ShangHai Index. Secondly, calculate thirteen industries'average Beta coefficient, compare average Beta coefficient of different industries, and study whether they are statistically the same. Thirdly, do regression between Beta coefficient and some indexes which select from data of managing lever and financing lever, find out corporation risk'influencing factors, and whether influencing factors are the same among different industries.