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Legendre Transform-Dual Solution for a Class of Investment and Consumption Problems with HARA Utility

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  • Hao Chang
  • Xi-min Rong

Abstract

This paper provides a Legendre transform method to deal with a class of investment and consumption problems, whose objective function is to maximize the expected discount utility of intermediate consumption and terminal wealth in the finite horizon. Assume that risk preference of the investor is described by hyperbolic absolute risk aversion (HARA) utility function, which includes power utility, exponential utility, and logarithm utility as special cases. The optimal investment and consumption strategy for HARA utility is explicitly obtained by applying dynamic programming principle and Legendre transform technique. Some special cases are also discussed.

Suggested Citation

  • Hao Chang & Xi-min Rong, 2014. "Legendre Transform-Dual Solution for a Class of Investment and Consumption Problems with HARA Utility," Mathematical Problems in Engineering, Hindawi, vol. 2014, pages 1-7, May.
    • Handle: RePEc:hin:jnlmpe:656438
    DOI: 10.1155/2014/656438
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