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Risk Return and Portfolio Allocation under Alternative Pension Systems with Imperfect Financial Markets

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  • Miles, David
  • Cerny, Ales

Abstract

This Paper uses stochastic simulations on calibrated models to assess the steady state impact of different pension arrangements in an environment where financial markets are less than perfect. Surprisingly little is known about the optimal split between funded and unfunded systems when there are sources of uninsurable risk that are allocated in different ways by different types of pension system and where there are imperfections in financial markets (eg transaction costs or adverse selection). This Paper calculates the expected welfare of agents in different economies where in the steady state the importance of unfunded state pensions differs. We estimate how the optimal level of unfunded state pensions depends on rate of return and income risks and also upon the actuarial fairness of annuity contracts. We focus on the case of Japan where ageing is rapid and unfunded pensions are currently generous.

Suggested Citation

  • Miles, David & Cerny, Ales, 2001. "Risk Return and Portfolio Allocation under Alternative Pension Systems with Imperfect Financial Markets," CEPR Discussion Papers 2779, C.E.P.R. Discussion Papers.
    • Handle: RePEc:cpr:ceprdp:2779
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    More about this item

    Keywords

    Pensions; Portfolio allocation; Demographics; Annuities; Risk-sharing;
    All these keywords.

    JEL classification:

    • D91 - Microeconomics - - Micro-Based Behavioral Economics - - - Role and Effects of Psychological, Emotional, Social, and Cognitive Factors on Decision Making
    • G22 - Financial Economics - - Financial Institutions and Services - - - Insurance; Insurance Companies; Actuarial Studies
    • H55 - Public Economics - - National Government Expenditures and Related Policies - - - Social Security and Public Pensions
    • J14 - Labor and Demographic Economics - - Demographic Economics - - - Economics of the Elderly; Economics of the Handicapped; Non-Labor Market Discrimination

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