1. 题目： A decomposition analysis of the trend in UK income iequality
    作者：Mookherjee and Shorrocks
    期刊：The economic journal, 1982, vol 92(368): 886-902.

2. 题目：On the interpretation and disaggregation of gini coefficients
   作者：Pyatt G.
   期刊：Economic Journal, 1976, vol(86): 243-266.

3.题目：Income strafitication and income inequality
  作者: Yitzhaki S and R Lerman
  期刊：Review of income and wealth, 1991, 37(3): 313-329.