Anomalies: A Mean-Reverting Walk Down Wall Street
研究发现股票价格在长期（3-7年）或经历极端波动后呈现负序列相关，即均值回归现象，为投资者提供预测参考。
Stock prices do appear to be somewhat predictable. In particular, if one takes a long-term perspective (3–7 years) or examines individual securities that have experienced extreme price movements, then stock returns display significant negative serial correlation, in other words, prices are mean reverting. This column reviews some of this evidence.