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Addressing the Demographic Decline in South Korea

Author

Listed:
  • Carroll, Daniel
  • Hur, Sewon
  • İmrohoroğlu, Selahattin
  • Strackman, Braden

Abstract

In this paper, we use an overlapping-generations standard-incomplete markets model to quantitatively investigate the long-run implications of Korea's demographic changes and policy reforms. Importantly, our quantitative model endogenizes the retirement decision and matches the elasticity of retirement to wealth. We use the model calibrated to Korea's economy and demography as a quantitative laboratory to investigate two policy scenarios: increasing taxes or decreasing benefits. While decreasing benefits leads to greater long run activity, it comes at the cost of lower average welfare, particularly for retirees.

Suggested Citation

  • Carroll, Daniel & Hur, Sewon & İmrohoroğlu, Selahattin & Strackman, Braden, 2026. "Addressing the Demographic Decline in South Korea," KDI Journal of Economic Policy, Korea Development Institute (KDI), vol. 48(1), pages 5-31.
  • Handle: RePEc:zbw:kdijep:341446
    DOI: 10.23895/KDIJEP.2026.48.1.5
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    1. Fumio Hayashi & Edward C. Prescott, 2004. "The 1990s in Japan: a lost decade," Chapters, in: Paolo Onofri (ed.), The Economics of an Ageing Population, chapter 2, Edward Elgar Publishing.
    2. Daniel Baksa & Boele Bonthuis & Mr. Si Guo & Zsuzsa Munkacsi, 2024. "Parametric Pension Reform Options in Korea," IMF Working Papers 2024/223, International Monetary Fund.
    3. Akira Okamoto, 2013. "Simulating Public Pension Reforms in an Aging Japan: Welfare Analysis with LSRA Transfers," Public Policy Review, Policy Research Institute, Ministry of Finance Japan, vol. 9(4), pages 597-632, September.
    4. Sewon Hur, 2018. "The Lost Generation of the Great Recession," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 30, pages 179-202, October.
    5. Mariacristina De Nardi, 2004. "Wealth Inequality and Intergenerational Links," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 71(3), pages 743-768.
    6. Mark Huggett & Gustavo Ventura, 1999. "On the Distributional Effects of Social Security Reform," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 2(3), pages 498-531, July.
    7. Ellen R. McGrattan & Edward C. Prescott, 2017. "On financing retirement with an aging population," Quantitative Economics, Econometric Society, vol. 8(1), pages 75-115, March.
    8. Sagiri Kitao, 2014. "Sustainable Social Security: Four Options," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 17(4), pages 756-779, October.
    9. Kitao, Sagiri, 2015. "Fiscal cost of demographic transition in Japan," Journal of Economic Dynamics and Control, Elsevier, vol. 54(C), pages 37-58.
    10. Dirk Krueger & Felix Kubler, 2006. "Pareto-Improving Social Security Reform when Financial Markets are Incomplete!?," American Economic Review, American Economic Association, vol. 96(3), pages 737-755, June.
    11. Attanasio, Orazio & Kitao, Sagiri & Violante, Giovanni L., 2007. "Global demographic trends and social security reform," Journal of Monetary Economics, Elsevier, vol. 54(1), pages 144-198, January.
    12. Selahattin Imrohoroglu & Sagiri Kitao, 2012. "Social Security Reforms: Benefit Claiming, Labor Force Participation, and Long-Run Sustainability," American Economic Journal: Macroeconomics, American Economic Association, vol. 4(3), pages 96-127, July.
    13. Makarski, Krzysztof & Tyrowicz, Joanna & Komada, Oliwia, 2024. "Capital income taxation and reforming social security in an OLG economy," Journal of Economic Dynamics and Control, Elsevier, vol. 165(C).
    14. Menahem E. Yaari, 1965. "Uncertain Lifetime, Life Insurance, and the Theory of the Consumer," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 32(2), pages 137-150.
    15. Selahattin İmrohoroğlu & Sagiri Kitao & Tomoaki Yamada, 2016. "Achieving Fiscal Balance In Japan," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 57(1), pages 117-154, February.
    16. Ihori, Toshihiro & Kato, Ryuta Ray & Kawade, Masumi & Bessho, Shun-ichiro, 2011. "Health insurance reform and economic growth: Simulation analysis in Japan," Japan and the World Economy, Elsevier, vol. 23(4), pages 227-239.
    17. Blanchard, Olivier J, 1985. "Debt, Deficits, and Finite Horizons," Journal of Political Economy, University of Chicago Press, vol. 93(2), pages 223-247, April.
    18. Roozbeh Hosseini & Ali Shourideh, 2019. "Retirement Financing: An Optimal Reform Approach," Econometrica, Econometric Society, vol. 87(4), pages 1205-1265, July.
    19. Imrohoroglu, Ayse & Imrohoroglu, Selahattin & Joines, Douglas H, 1995. "A Life Cycle Analysis of Social Security," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 6(1), pages 83-114, June.
    20. Selahattin İmrohoroğlu & Sagiri Kitao & Tomoaki Yamada, 2016. "Achieving Fiscal Balance In Japan," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 57, pages 117-154, February.
    21. Braun, R. Anton & Joines, Douglas H., 2015. "The implications of a graying Japan for government policy," Journal of Economic Dynamics and Control, Elsevier, vol. 57(C), pages 1-23.
    22. Juan C. Conesa & Dirk Krueger, 1999. "Social Security Reform with Heterogeneous Agents," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 2(4), pages 757-795, October.
    23. Gary Hansen & Selahattin Imrohoroglu, 2016. "Fiscal Reform and Government Debt in Japan: A Neoclassical Perspective," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 21, pages 201-224, July.
    24. Gary Hansen & Selahattin Imrohoroglu, 2023. "Demographic Change, Government Debt and Fiscal Sustainability in Japan: The Impact of Bond Purchase by the Bank of Japan," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 50, pages 88-105, October.
    25. Gaillard, Alexandre & Hellwig, Christian & Wangner, Philipp & Werquin, Nicolas, 2023. "Consumption, Wealth, and Income Inequality: A Tale of Tails," CEPR Discussion Papers 18666, Centre for Economic Policy Research.
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    Keywords

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    JEL classification:

    • H55 - Public Economics - - National Government Expenditures and Related Policies - - - Social Security and Public Pensions
    • J11 - Labor and Demographic Economics - - Demographic Economics - - - Demographic Trends, Macroeconomic Effects, and Forecasts
    • J26 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Retirement; Retirement Policies
    • E62 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Fiscal Policy; Modern Monetary Theory

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