A convex duality approach for pricing contingent claims under partial information and short selling constraints. Issue 2 (4th March 2017)

• Record Type: Journal Article
• Authors: Dahl, Kristina Rognlien
• Is Part Of: Stochastic analysis and applications. Volume 35:Issue 2(2017)
• Page Start: 317
• Page End: 333
• Publication Date: 2017-03-04
• Subjects: Convex duality -- mathematical finance -- pricing -- partial information; 49N15 -- 90C15 -- 90C25 -- 90C46 -- 91G20; Stochastic analysis -- Periodicals; 519.2205
• DOI: 10.1080/07362994.2016.1255147
• Languages: English
• ISSNs: 0736-2994

Abstract

ABSTRACT: We consider the pricing problem facing a seller of a contingent claim. We assume that this seller has some general level of partial information, and that he is not allowed to sell short in certain assets. This pricing problem, which is our primal problem, is a constrained stochastic optimization problem. We derive a dual to this problem by using the conjugate duality theory introduced by Rockafellar. Furthermore, we give conditions for strong duality to hold. This gives a characterization of the price of the claim involving martingale- and super-martingale conditions on the optional projection of the price processes.