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Optimal management of defined contribution pension funds under the effect of inflation, mortality and uncertainty
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Optimal management of defined contribution pension funds under the effect of inflation, mortality and uncertainty

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  • Baltas, I.
  • Dopierala, L.
  • Kolodziejczyk, K.
  • Szczepański, M.
  • Weber, G.-W.
  • Yannacopoulos, A.N.

Abstract

In the present work, we study the problem of optimal management of defined contribution pension funds, during the distribution phase, under the effect of inflation, mortality and model uncertainty. More precisely, we consider a class of employees, who, at the time of retirement, enter a life assurance contract with the same insurance firm. The fund manager of the firm collects the entry fees to a portfolio savings account and this wealth is to be invested optimally in a Black–Scholes type financial market. As such schemes usually last for many years, we extend our framework, by: (i) augmenting the financial market with an inflation-adjusted bond, and, (ii) taking into account mortality of the fund members. Model uncertainty aspects are introduced as the fund manager does not fully trust the model he/she faces. By resorting to robust control and dynamic programming techniques, we provide: (a) closed-form solutions for the case of the exponential utility function, (b) a detailed study of the qualitative features of the problem at hand that elucidates the effect of robustness and inflation on the optimal investment decisions.

Suggested Citation

  • Baltas, I. & Dopierala, L. & Kolodziejczyk, K. & Szczepański, M. & Weber, G.-W. & Yannacopoulos, A.N., 2022. "Optimal management of defined contribution pension funds under the effect of inflation, mortality and uncertainty," European Journal of Operational Research, Elsevier, vol. 298(3), pages 1162-1174.
    • Handle: RePEc:eee:ejores:v:298:y:2022:i:3:p:1162-1174
    DOI: 10.1016/j.ejor.2021.08.038
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    2. Josa-Fombellida, Ricardo & López-Casado, Paula, 2023. "A defined benefit pension plan game with Brownian and Poisson jumps uncertainty," European Journal of Operational Research, Elsevier, vol. 310(3), pages 1294-1311.
    3. P. Koundouri & G. I. Papayiannis & E. V. Petracou & A. N. Yannacopoulos, 2024. "Consensus Group Decision Making Under Model Uncertainty with a View Towards Environmental Policy Making," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 87(6), pages 1611-1649, June.
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