Super-replication with proportional transaction cost under model uncertainty.

Authors
Publication date
2018
Publication type
Journal Article
Summary We consider a discrete time financial market with proportional transaction cost under model uncertainty, and study a super-replication problem. We recover the duality results that are well known in the classical dominated context. Our key argument consists in using a randomization technique together with the minimax theorem to convert the initial problem to a frictionless problem set on an enlarged space. This allows us to appeal to the techniques and results of Bouchard and Nutz (2015) to obtain the duality result.
Publisher
Wiley
Topics of the publication
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