Research On Models Of Middle-Income Groups’ Positioning And Measured By Population

The income distribution system of China is "Adhere to the distribution according to work is dominant and coexistence of multiple distribution system and distribution system." Since reform and opening up, China’s rapid economic development, people’s living standards are increasing, but behind this success, there are also the inevitable problems-the assignment of unreasonable. Reflected in the decrease in the proportion of urban and rural residents’ income in the national income, in the proportion of the primary distribution of remuneration in decline; residents’ income gap continued to widen, Gini coefficient, cross the picket line. January 2015, NBS, the 2014 national income Gini coefficient was 0.469 in 2013, down from 0.473, reflecting the trend of domestic wealth gap has narrowed. But according to international Shang common of base NI coefficient quantitative determination social residents income distribution of differences degree, think only base NI coefficient below 0.2 of when to said income reached fair degree; and social distribution not average of cordon is set for 0.4, so base NI coefficient should keep in 0.2～0.4 Zhijian, if base NI coefficient below 0.2, will led to social power insufficient, lack enterprising spirit; above 0.4, is will led to social not settled, resenting the psychological suddenly rose. Thus, narrowing the income gap is a very important thing. The essential characteristic of socialism, and the ultimate goal is to achieve common prosperity, entered the Communist society, this is the place where socialism is different from capitalism. However, in the building of socialism with Chinese characteristics, comprehensive well-off society, in the process of realizing the great rejuvenation of the Chinese nation, has emerged and gradually widened the gap. Faced with this problem, how to correctly understand and treat the common prosperity and wealth disparity problem, expanding the proportion of medium income groups can play a coordinating role in the relationship.In the process of economic restructuring and reform, there is a further widening of the income gap issue. How to maintain social stability and sustained economic development is now the country’s important strategic choice, and expand the proportion of medium income group is the key to implementing the strategy and difficulty. From a theoretical perspective, is the system of theories of socialism especially distribution system to deepen and complement, is to prevent polarization and achieve common prosperity, and the basic guarantee for realizing the great rejuvenation of the Chinese dream. Mirrored in the physical level, allows people to share the fruits of economic prosperity, speeding up the process of build a well-off society. Meanwhile, middle income group is low-income middle and high earners in society where their conflict to ease the contradiction between high income and plays an effective cushioning is the backbone of maintaining social stability, to build a harmonious socialist society. Reflect income distribution pattern of important indicator is the proportion of medium income groups of the population, the proportion of middle-income groups of the population, the greater mean income distribution structure is more reasonable, we call it "the olive-shaped" pattern of income distribution. To achieve "olive-shaped" pattern of income distribution in order to achieve a steady-state, in that case, consumption desire, people’s income gaps, and a good quality of life.From the fields of Economics and sociology at middle income group study is based, refers to hundreds of articles on middle income group research paper, describe connotations and features of the middle-income groups, starting from the Lorenz curve generation, discusses the evolution of research models. Includes interpolation, distribution function, the model method. Explore one of insufficient research on the problems of the middle income groups continue to. Weighted and innovation based on the previous model of proposed new models, testing them to justify, on the basis of " Income space method" and the "population space method" for upper and lower limits to redefine, overcome revenue cannot overcome the interval selected at random, population space method cannot overcome the polarization effect. Through the understanding of the middle income group, more the economic significance of the new model and positive analysis of the income data of Shaanxi Province.