Martingale optimal transport duality

Patrick Cheridito, Matti Kiiski, David J. Prömel, H. Mete Soner

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


We obtain a dual representation of the Kantorovich functional defined for functions on the Skorokhod space using quotient sets. Our representation takes the form of a Choquet capacity generated by martingale measures satisfying additional constraints to ensure compatibility with the quotient sets. These sets contain stochastic integrals defined pathwise and two such definitions starting with simple integrands are given. Another important ingredient of our analysis is a regularized version of Jakubowski’s S-topology on the Skorokhod space.

Original languageEnglish (US)
Pages (from-to)1685-1712
Number of pages28
JournalMathematische Annalen
Issue number3-4
StatePublished - Apr 2021
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Mathematics


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