In a market with a discontinuous filtration, whose price is influenced by a random factor, we study an optimization problem of an investor who is facing a sequence of losses driven by a Cox process. We give a form of variance-optimal martingale measure by changing the filtration. By using the solutions of the stochastic Riccati equation and another associated backward stochastic equation, we obtain a solution of the optimization problem of the investor.
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Univ Marne La Vallee, Equipe Anal & Math Appl, F-77454 Marne La Vallee 02, FranceUniv Marne La Vallee, Equipe Anal & Math Appl, F-77454 Marne La Vallee 02, France
Gourieroux, C
Laurent, JP
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Univ Marne La Vallee, Equipe Anal & Math Appl, F-77454 Marne La Vallee 02, FranceUniv Marne La Vallee, Equipe Anal & Math Appl, F-77454 Marne La Vallee 02, France
Laurent, JP
Pham, H
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Univ Marne La Vallee, Equipe Anal & Math Appl, F-77454 Marne La Vallee 02, FranceUniv Marne La Vallee, Equipe Anal & Math Appl, F-77454 Marne La Vallee 02, France
机构:
Chuo Univ, Dept Ind & Syst Engn, Bunkyo Ku, 1-13-27 Kasuga, Tokyo 1128551, JapanChuo Univ, Dept Ind & Syst Engn, Bunkyo Ku, 1-13-27 Kasuga, Tokyo 1128551, Japan
机构:
Univ Evry Val dEssonne, Lab Anal & Probabilites, IBGBI, F-91037 Evry, France
Inst Europlace Finance, F-75002 Paris, FranceUniv Evry Val dEssonne, Lab Anal & Probabilites, IBGBI, F-91037 Evry, France
Jeanblanc, Monique
Mania, Michael
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A Razmadze Math Inst, GE-0193 Tbilisi, Georgia
Georgian Amer Univ, Tbilisi, GeorgiaUniv Evry Val dEssonne, Lab Anal & Probabilites, IBGBI, F-91037 Evry, France
Mania, Michael
Santacroce, Marina
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Politecn Torino, Dipartimento Matemat, I-10129 Turin, ItalyUniv Evry Val dEssonne, Lab Anal & Probabilites, IBGBI, F-91037 Evry, France
Santacroce, Marina
Schweizer, Martin
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ETH, Dept Math, ETH Zentrum, CH-8092 Zurich, Switzerland
Swiss Finance Inst, CH-8006 Zurich, SwitzerlandUniv Evry Val dEssonne, Lab Anal & Probabilites, IBGBI, F-91037 Evry, France