A Contribution Analysis of the Increase in 1-2 Person Families on the Income Inequality and the Income Gap

1-2인 가구증가의 소득불평등도와 소득격차에 대한 기여도 분석

  • Lim, Byung-In (Dept. of Economics, Chungbuk National University) ;
  • Kim, Sung-Tai (Dept. of Economics, Cheongju University) ;
  • Jung, Ji-Un (Korea Research Institute for Vocational Education & Training)
  • Received : 2015.10.14
  • Accepted : 2015.12.20
  • Published : 2015.12.28


This paper examines trends of the income inequality index and the income quintile share ratios, using the Household Survey released by Statistics Korea. We discuss their respective effects on total income inequality and the income disparity, as a contribution concept defined in this paper for 1990-2014 periods. Main findings are as follows. First, the contribution of 2-person families to total inequality with the current income or the disposable income becomes bigger, and growth rates have been above 10% since 2003. Second, the contribution of 1-person families to income inequality is greater than that of 2-person families. Policy implication is such that the government had better investigate the 1 or 2 person families in-depth to set up the policy measures for weakening the income inequality.


1-2 Person Families;Household Diversification;Income Inequality;Income Quintile Share Ratio;Deciles Distribution Ratio;Income Gap


Supported by : 한국연구재단


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