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Private versus public old-age security

Author

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  • Barnett, Richard C.
  • Bhattacharya, Joydeep
  • Puhakka, Mikko
Abstract
We directly compare two institutions, a family compact—a parent makes a transfer to her parent in anticipation of a possible future gift from her children—with a pay-as-you-go, public pension system, in a life cycle model with endogenous fertility wherein children are valued both as consumption and investment goods. Absent intragenerational heterogeneity, we show that a benevolent government has no welfare justification for introducing public pensions alongside thriving family compacts since the former is associated with inefficiently low fertility. This result hinges critically on a fiscal externality—the inability of middle age agents to internalize the impact of their fertility decisions on old-age transfers under a public pension system. With homogeneous agents, a strong-enough negative aggregate shock to middle-age incomes destroys all family compacts, and in such a setting, an optimal public pension system cannot enter. This suggests the raison d’être for social security must lie outside of its function as a pension system—specifically its redistributive function which emerges with heterogeneous agents. In a simple modification of our benchmark model—one that allows for idiosyncratic frictions to compact formation such as differences in infertility/mating status—a welfare-enhancing role for a public pension system emerges; such systems may flourish even when family compacts cannot.

Suggested Citation

  • Barnett, Richard C. & Bhattacharya, Joydeep & Puhakka, Mikko, 2017. "Private versus public old-age security," ISU General Staff Papers 201712010800001073, Iowa State University, Department of Economics.
    • Handle: RePEc:isu:genstf:201712010800001073
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    2. Torben M. Andersen & Joydeep Bhattacharya & Qing Liu, 2021. "Reference‐dependent preferences, time inconsistency, and pay‐as‐you‐go pensions," Economic Inquiry, Western Economic Association International, vol. 59(3), pages 1008-1030, July.
    3. Monisankar Bishnu & Cagri Kumru, 2020. "A Note on the Annuity Role of Estate Tax - ONLINE SUPPLEMENT," ANU Working Papers in Economics and Econometrics 2020-676, Australian National University, College of Business and Economics, School of Economics.
    4. Torben M. Andersen & Joydeep Bhattacharya & Qing Liu, 2020. "Reference-Dependent Preferences, Time Inconsistency, and Unfunded Pensions," CESifo Working Paper Series 8260, CESifo.
    5. Alessandro Cigno & Alessandro Gioffré & Annalisa Luporini, 2021. "Evolution of individual preferences and persistence of family rules," Review of Economics of the Household, Springer, vol. 19(4), pages 935-958, December.

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    More about this item

    JEL classification:

    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles

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