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The optimal size of Japan's public pensions: An analysis considering the risks of longevity and volatility of return on assets

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  • Miyazato, Naomi

Abstract

There are two main pension systems: the Defined Benefit (DB) pension system and the Defined Contribution (DC) pension system. Each system has advantages and disadvantages. This paper investigates to what degree Japan should maintain a DB public pension system which offers the benefit of sharing risk and to what degree Japan must adopt a DC pension system to eliminate intergenerational imbalance. The risks of longevity and volatility of return on assets are incorporated into the simulation model. As a result of the simulation analysis, a replacement rate of 20-30% would be adequate for future generations if the expected return on assets and the wage growth rate are at the same level. Meanwhile, if the former is 2% points larger than the latter, a replacement rate of 0% or full-scale privatization would be desirable.

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  • Miyazato, Naomi, 2010. "The optimal size of Japan's public pensions: An analysis considering the risks of longevity and volatility of return on assets," Japan and the World Economy, Elsevier, vol. 22(1), pages 31-39, January.
    • Handle: RePEc:eee:japwor:v:22:y:2010:i:1:p:31-39
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    1. Alan J. Auerbach & Jagadeesh Gokhale & Laurence J. Kotlikoff, 1991. "Generational Accounts: A Meaningful Alternative to Deficit Accounting," NBER Chapters, in: Tax Policy and the Economy, Volume 5, pages 55-110, National Bureau of Economic Research, Inc.
    2. John Geanakoplos & Olivia S. Mitchell & Stephen P. Zeldes, "undated". "Would a Privatized Social Security System Really Pay a Higher Rate of Return?," Pension Research Council Working Papers 98-6, Wharton School Pension Research Council, University of Pennsylvania.
    3. Paul A. Samuelson, 1958. "An Exact Consumption-Loan Model of Interest with or without the Social Contrivance of Money," Journal of Political Economy, University of Chicago Press, vol. 66(6), pages 467-467.
    4. Henning Bohn, 2001. "Social Security and Demographic Uncertainty: The Risk-Sharing Properties of Alternative Policies," NBER Chapters, in: Risk Aspects of Investment-Based Social Security Reform, pages 203-246, National Bureau of Economic Research, Inc.
    5. Martin Feldstein & Elena Ranguelova, 2001. "Individual Risk in an Investment-Based Social Security System," American Economic Review, American Economic Association, vol. 91(4), pages 1116-1125, September.
    6. Yukinobu Kitamura & Noriyuki Takayama, 1999. "Lessons from Generational Accounting in Japan," American Economic Review, American Economic Association, vol. 89(2), pages 171-175, May.
    7. Zvi Bodie & Alan J. Marcus & Robert C. Merton, 1988. "Defined Benefit versus Defined Contribution Pension Plans: What are the Real Trade-offs?," NBER Chapters, in: Pensions in the U.S. Economy, pages 139-162, National Bureau of Economic Research, Inc.
    8. Noriyuki Takayama & Yukinobu Kitamura & Hiroshi Yoshida, 1999. "Generational Accounting in Japan," NBER Chapters, in: Generational Accounting around the World, pages 447-470, National Bureau of Economic Research, Inc.
    9. 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.
    10. Sanchez-Marcos, Virginia & Sanchez-Martin, Alfonso R., 2006. "Can social security be welfare improving when there is demographic uncertainty?," Journal of Economic Dynamics and Control, Elsevier, vol. 30(9-10), pages 1615-1646.
    11. David Bradford, 1991. "Tax Policy and the Economy, Volume 5," NBER Books, National Bureau of Economic Research, Inc, number brad91-1, March.
    12. Kato, Ryuta, 1998. "Transition to an Aging Japan: Public Pension, Savings, and Capital Taxation," Journal of the Japanese and International Economies, Elsevier, vol. 12(3), pages 204-231, September.
    13. Christoph Borgmann, 2005. "Social Security, Demographics, and Risk," Population Economics, Springer, number 978-3-540-26697-6, March.
    14. Auerbach, Alan J. & Kotlikoff, Laurence J. & Leibfritz, Willi (ed.), 1999. "Generational Accounting around the World," National Bureau of Economic Research Books, University of Chicago Press, edition 1, number 9780226032139, December.
    15. 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.
    16. Shinichi Nishiyama & Kent Smetters, 2005. "Consumption Taxes and Economic Efficiency with Idiosyncratic Wage Shocks," Journal of Political Economy, University of Chicago Press, vol. 113(5), pages 1088-1115, October.
    17. Seki Asano & Takashi Fukushima, 2006. "Some Empirical Evidence On Demand System* And Optimal Commodity Taxation," The Japanese Economic Review, Japanese Economic Association, vol. 57(1), pages 50-68, March.
    18. Diamond, P. A., 1977. "A framework for social security analysis," Journal of Public Economics, Elsevier, vol. 8(3), pages 275-298, December.
    19. Tatsuo Hatta & Noruyoshi Oguchi, 1992. "Changing the Japanese Social Security System from Pay as You Go to Actuarially Fair," NBER Chapters, in: Topics in the Economics of Aging, pages 207-248, National Bureau of Economic Research, Inc.
    20. Bessho, Shun-ichiro & Hayashi, Masayoshi, 2005. "Economic studies of taxation in Japan: The case of personal income taxes," Journal of Asian Economics, Elsevier, vol. 16(6), pages 956-972, December.
    21. Alan J. Auerbach & Laurence J. Kotlikoff & Willi Leibfritz, 1999. "Generational Accounting around the World," NBER Books, National Bureau of Economic Research, Inc, number auer99-1, March.
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    Cited by:

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    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. Toloo, Mehdi & Tone, Kaoru & Izadikhah, Mohammad, 2023. "Selecting slacks-based data envelopment analysis models," European Journal of Operational Research, Elsevier, vol. 308(3), pages 1302-1318.

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