摘要
我国正处于经济转型期和收入分配格局的重要调整期,监控收入分配格局的变化具有重大意义.首先,针对中等收入定位与人口度量模型研究,构建新的洛伦兹模型L(p)=[1-(1-p)~αe^(-βp)][1-(1-p)~γe^(ηp)],与现有的经典洛伦兹模型做比较,拟合精度最优.其次,针对收入空间法和入口空间法的缺陷,给出相应解决对策.最后,提出中等收入人群的新定义,在此基础上构建了中等人口收入效用指数模型.
China is in the period of economic transition and income distribution adjustment. So to monitor the change of income distribution pattern is of great significance. Firstly, to middle-income orientation and population measure model, we build the new Lorentz model. Compared with the existing classical Lorentz model, the fitting precision of it is the best. Secondly, for the defects of the income space and population space method, we provide corre- sponding countermeasures. Lastly, we provide a new definition for the middle-income group. Based with it, we build middle-income population utility index model.
出处
《数学的实践与认识》
CSCD
北大核心
2014年第15期99-105,共7页
Mathematics in Practice and Theory
基金
山东省科技发展计划项目(2012GGB01241)
关键词
中等收入
洛伦兹曲线
收入空间法
人口空间法
middle-income
Lorentz curve
income space method
population space method
