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Safety first portfolio choice based on financial and sustainability returns

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  • Dorfleitner, Gregor
  • Utz, Sebastian

Abstract

This paper lays the mathematical foundations of the notion of an investment's sustainability return and investigates three different models of portfolio selection with probabilistic constraints for safety first investors caring about the financial and the sustainability consequences of their investments. The discussion of these chance-constrained programming problems for stochastic and deterministic sustainability returns includes theoretical results especially on the existence of a unique solution under certain conditions, an illustrating example, and a computational time analysis. Furthermore, we conclude that a simple convex combination of financial and sustainability returns - yielding a new univariate decision variable - is not sufficiently general.

Suggested Citation

  • Dorfleitner, Gregor & Utz, Sebastian, 2011. "Safety first portfolio choice based on financial and sustainability returns," University of Regensburg Working Papers in Business, Economics and Management Information Systems 452, University of Regensburg, Department of Economics.
    • Handle: RePEc:bay:rdwiwi:19914
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    File URL: https://epub.uni-regensburg.de/19914/3/Regensburger_Diskusionsbeitr%C3%A4ge_452.pdf
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