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Mean-Field Reflected Backward Stochastic Differential Equations
KTH, School of Engineering Sciences (SCI), Mathematics (Dept.), Mathematical Statistics.ORCID iD: 0000-0002-6608-0715
Univ Gustave Eiffel, LAMA, CNRS, Champs Sur Marne, France..
Le Mans Univ, LMM, Le Mans, France..
2023 (English)In: The Annals of Applied Probability, ISSN 1050-5164, E-ISSN 2168-8737, Vol. 33, no 4, p. 2493-2518Article in journal (Refereed) Published
Abstract [en]

In this paper, we study a class of reflected backward stochastic differential equations (BSDEs) of mean-field type, where the mean-field interaction in terms of the distribution of the Y-component of the solution enters in both the driver and the lower obstacle. We consider in details the case where the lower obstacle is a deterministic function of (Y, E[Y]) and discuss the more general dependence on the distribution of Y. Under mild Lipschitz and in-tegrability conditions on the coefficients, we obtain the well-posedness of such a class of equations. Under further monotonicity conditions, we show convergence of the standard penalization scheme to the solution of the equa-tion, which hence satisfies a minimality property. This class of equations is motivated by applications in pricing life insurance contracts with surrender options.

Place, publisher, year, edition, pages
Institute of Mathematical Statistics , 2023. Vol. 33, no 4, p. 2493-2518
Keywords [en]
Mean-field, backward SDEs, Snell envelope, penalization
National Category
Probability Theory and Statistics
Identifiers
URN: urn:nbn:se:kth:diva-333744DOI: 10.1214/20-AAP1657ISI: 001031710500001Scopus ID: 2-s2.0-85165645618OAI: oai:DiVA.org:kth-333744DiVA, id: diva2:1786882
Note

QC 20230810

Available from: 2023-08-10 Created: 2023-08-10 Last updated: 2023-08-10Bibliographically approved

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Djehiche, Boualem

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