Considering practical operation of stock market in our country, this thesis begins with the Efficiency Market Hypothesis (EMH), and then it demonstrates the market efficiency of Chinese Stock Market.The fundamental aim of this thesis is to analysis and estimate whether the Chinese stock market is efficiency, furthermore, to point out the degree of the efficiency, and also to put forward some suggestions on improving the market efficiency of Chinese Stock Market.During my research, firstly I adopt the methods of 'random walk' and 'units' to test the weak form efficiency in Chinese Stock Market. Secondly, I use the share prices reactions to 2003 annals announcements to detect the semi-strong efficiency. Finally I find that Chinese Stock Market has been weak form efficiency since 1993, and hasn't reached semi-strong form efficiency. |