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A common thread linking the design of guarantee and nonescalating payments of public annuities

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  • Sau‐Him Paul Lau
  • Qilin Zhang

Abstract

Motivated by recent experiences in economies adopting the defined‐contribution pension system, we study public annuities in the presence of survival probability heterogeneity. It is found that the difference of annuitization‐weighted and unweighted averages of survival probabilities is a useful measure of the severity of adverse selection. We then examine public annuities with a guarantee feature which bundles annuity income and bequeathable wealth components. We show that when the heterogeneity in survival probability is limited, the magnitude of guarantee proportion is irrelevant. On the other hand, an increase in the guarantee proportion mitigates adverse selection when the extent of heterogeneity is sufficiently large, because the share of annuity purchase by retirees with lower (resp., higher) survival probabilities is increased (resp., decreased). We also obtain a similar set of results for public annuities with nonescalating payments. The results have useful implications regarding the design of public annuities.

Suggested Citation

  • Sau‐Him Paul Lau & Qilin Zhang, 2023. "A common thread linking the design of guarantee and nonescalating payments of public annuities," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 90(3), pages 703-742, September.
    • Handle: RePEc:bla:jrinsu:v:90:y:2023:i:3:p:703-742
    DOI: 10.1111/jori.12419
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