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Tax- and expense-modified risk-minimization for insurance payment processes

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  • Kristian Buchardt
  • Christian Furrer
  • Thomas M{o}ller

Abstract

We study the problem of determining risk-minimizing investment strategies for insurance payment processes in the presence of taxes and expenses. We consider the situation where taxes and expenses are paid continuously and symmetrically and introduce the concept of tax- and expense-modified risk-minimization. Risk-minimizing strategies in the presence of taxes and expenses are derived and linked to Galtchouk-Kunita-Watanabe decompositions associated with modified versions of the original payment processes. Furthermore, we show equivalence to an alternative approach involving an artificial market consisting of after-tax and after-expense assets, and we establish a type of consistency with classic risk-minimization. Finally, a case study involving classic multi-state life insurance payments in combination with a bond market exemplifies the results.

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  • Kristian Buchardt & Christian Furrer & Thomas M{o}ller, 2019. "Tax- and expense-modified risk-minimization for insurance payment processes," Papers 1907.04230, arXiv.org, revised Mar 2020.
    • Handle: RePEc:arx:papers:1907.04230
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    1. Lamberton, Damien & Pham, Huyên & Schweizer, Martin, 1998. "Local risk-minimization under transaction costs," SFB 373 Discussion Papers 1998,18, Humboldt University of Berlin, Interdisciplinary Research Project 373: Quantification and Simulation of Economic Processes.
    2. Martin Schweizer, 1994. "Risk‐Minimizing Hedging Strategies Under Restricted Information," Mathematical Finance, Wiley Blackwell, vol. 4(4), pages 327-342, October.
    3. Damien Lamberton & Huyên Pham & Martin Schweizer, 1998. "Local Risk-Minimization Under Transaction Costs," Mathematics of Operations Research, INFORMS, vol. 23(3), pages 585-612, August.
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