Income Inequality in South Korea, 1933–2022: Evidence from Distributional National Accounts

Sehyun Hong, Nak Nyeon Kim, Zhexun Mo and Li Yang

No ym4k3_v1, SocArXiv from Center for Open Science

Abstract: We combine household survey micro data, tax data, and national accounts to construct annual pretax income inequality series for South Korea, which is coherent with macro aggregates. We provide the distribution of pretax national income over the time period from 1933 to 2022, with detailed breakdown by income composition in the years from 1996 to 2022. Our new series demonstrates that Korean top income shares decreased substantially from the 1930s up until the mid-1960s, following various wars, independence and land reform policies. Income inequalities then stabilized against the backdrop of rapid economic growth in the 1970s and 1980s, and decreased even further from the late 1980s onwards until the onset of the Asian Financial Crisis in 1997, which contradicts the “Kuznets Curve.” In the aftermath of the crisis, income inequality worsened due to the rise of tax-exempted capital income concentration at the top. Compared to other East Asian countries, South Korea exhibits relatively lower levels of income inequality in terms of higher bottom 50% income shares, mostly due to a more equal distribution of national income growth at the stages of economic take-off in the 1980s, even though income concentration at the very top has strikingly worsened over the last two decades, with its top 1% income shares in 2022 returning back to the peak only observed during the colonial era. (Stone Center on Socio-Economic Inequality Working Paper)

Date: 2025-10-16
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Persistent link: https://EconPapers.repec.org/RePEc:osf:socarx:ym4k3_v1

DOI: 10.31219/osf.io/ym4k3_v1

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