In an arbitrage-free simple market, we demonstrate that for a class of state-dependent exponential utilities, there exists a unique prediction of the random risk aversion that ensures the consistency of optimal strategies across any time horizon. Our solution aligns with the theory of forward performances, with the added distinction of identifying, among the infinite possible solutions, the one for which the profile is the actual optimizer of the system of preferences specified a priori.

On consistency of optimal portfolio choice for state-dependent exponential utilities / E. Berton, M. De Donno, M. Maggis. - In: QUANTITATIVE FINANCE. - ISSN 1469-7688. - (2026 Apr 22), pp. 1-12. [Epub ahead of print] [10.1080/14697688.2026.2654734]

On consistency of optimal portfolio choice for state-dependent exponential utilities

M. Maggis
Ultimo
2026

Abstract

In an arbitrage-free simple market, we demonstrate that for a class of state-dependent exponential utilities, there exists a unique prediction of the random risk aversion that ensures the consistency of optimal strategies across any time horizon. Our solution aligns with the theory of forward performances, with the added distinction of identifying, among the infinite possible solutions, the one for which the profile is the actual optimizer of the system of preferences specified a priori.
Time consistency; State-dependent utility; Portfolio choice; Forward performance; Exponential utility; Market price of risk; D81; C61; D11;
Settore STAT-04/A - Metodi matematici dell'economia e delle scienze attuariali e finanziarie
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   MINISTERO DELL'UNIVERSITA' E DELLA RICERCA
   2022K28KB7_001
22-apr-2026
https://www.tandfonline.com/doi/full/10.1080/14697688.2026.2654734
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/1239452
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