偶尔查阅论文，看到以下几篇内容相近的（见下面的1-3），令人惊奇的是，第1篇似乎并未在JF上真正发表？几经改名，作者也多次变更，最终成为第3篇在RFS上登出。大家看看咋回事？1、Chen, L., and L. Zhang. A Better Three-Factor Model that Explains More Anomalies [J]. Journal of Finance, 2010, 65(2), 563-595. 2、An Alternative Three-Factor Model（Chen, L., R. Rovy-Marx, and L. Zhang）；3、Hou K., X. Chen, and L. Zhang. Digesting Anomalies: An Investment Approach [J]. Review of Financial Studies, 2015, 28(4):650-705.