부부의 근로소득연관성과 가구근로소득 불평등 관계에 관한 연구 = Income Inequality and Association between Spouses` Earnings in South Korea

다국어 초록 (Multilingual Abstract)

This paper aims to explore the effects of spouses’ earnings association on household inequality in South Korea during the last 25 years. To better analyze the impact of couples`` earning association, I decompose the association into three dimensions. First, I would see if there are increases in the association between dual-earner couples`` earnings. Second, the relationship between husbands`` earnings and the odds that wives work is considered. Lastly, the mere increase of dual-earner couples is separately counted. I use log-linear models and Household Survey Data from 1990 to 2014.Log-linear models enable me to interpret each element``s contribution to inequality in a counter-factual terms. The results show that changes in the association explain inequality from 1.67% to 14.21%, depending on how you measure inequality. Not surprisingly, the negative relation between husbands`` earnings and the odds that wives work do not appear yet in Korea. This element largely offsets the other two elements`` influence on increasing inequality. Overall, the association between spouses’ earnings has not been putting serious threats on household inequality. While the income inequality appears to be a serious social problem in Korea, this result implies other than individual``s achievement plays an important role in increasing the household inequality.

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