运用马科维兹理论进行资本有效配置的前提条件是市场有效。统计研究表明,欧美一些发达市场国家的金融市场已经达到弱式有效,而我国资本市场是否有效却存在争议。本文通过选取沪深300指数的从创建至今的数据为研究对象,采用单位根检验和方差比检验方法来探究我国股指期货市场的有效性。 The prerequisite for the efficient allocation of capital using Markovic theory is that the market is effective. Statistical studies show that the financial markets of some developed market countries in Europe and the United States have reached weak and effective levels. However, the effectiveness of the capital markets in China is controversial. This paper chooses the data from the founding date of the CSI 300 Index as the research object, and uses unit root test and variance ratio test to explore the validity of the stock index futures market in our country.