Using it the writer analyses demonstratively the income diversity of the employees in three industries in Nanjing and indicates some useful ideas of control on the income diversity.

• 文章运用余期望系数对南京市三次产业在岗职工工资收入差异状况进行了实证分析,并据此提出了一些控制该市三次产业在岗职工工资收入差异扩大的建设性意见。