CAJ | 학술논문

收入分布函数的研究对于收入不平等的探讨意义重大,但是国内该领域的研究尚待进一步的拓展。笔者在文献回顾的基础上梳理了国外的相关研究,把常用的分布函数分成两参数分布和多参数分布函数两类,介绍了各类函数拟合居民实际收入分布的效果及其与基尼系数的关系;同时,本文剖析了各类函数之间的内在联系;进一步,基于分布函数的角度,笔者研究了收入流动性与收入不平等之间的联系,分析了平均数和中位数比值与基尼系数之间的数学关系以及如何利用该比值来估计分布函数的参数。利用这些研究结果,文章探讨了2010年我国城镇居民的收入结构和贫困问题并提出了一些前瞻性的研究建议。
수입분포함수적연구대우수입불평등적탐토의의중대,단시국내해영역적연구상대진일보적탁전。필자재문헌회고적기출상소리료국외적상관연구,파상용적분포함수분성량삼수분포화다삼수분포함수량류,개소료각류함수의합거민실제수입분포적효과급기여기니계수적관계;동시,본문부석료각류함수지간적내재련계;진일보,기우분포함수적각도,필자연구료수입류동성여수입불평등지간적련계,분석료평균수화중위수비치여기니계수지간적수학관계이급여하이용해비치래고계분포함수적삼수。이용저사연구결과,문장탐토료2010년아국성진거민적수입결구화빈곤문제병제출료일사전첨성적연구건의。
A study on income distribution function has significant effect on the research of income disparity, however, it needs sorted the income distribution functions into two categories： two-parametric distrbution and multi-parametric distrbution functions. The author also described the effects of the various functions fitting people＇s actual income distribution, and the relationship between income distrbution functions and Gini Coefficient. Meanwhile, this paper analyses the inherent links among these functions. Furthermore, based on the perspective of distrbution functions, the author studied the link between income mobility and income disparity, and alyzed the mathmatical relationship between the ratio of mean and median and the Gini Coefficient, and how to use the ration to estimate the distribution function parameters. Based on these findings, this paper discussed the structure of urban residents＇ income and poverty issues in China and put forward some prospective suggestions.