扩大中等收入者比重对国民经济和社会发展具有重要的战略意义,需要坚持协调发展、效率优先兼顾公平等原则,需要规范首次分配,解决发展的问题等措施来扩大其比重。 The expansion of the proportion of middle-income people has an important strategic significance for the national economy and social development. We need to adhere to the principle of coordinated development, giving priority to efficiency and fairness, and need to regulate the initial distribution and solve the problems of development so as to expand its proportion.