Convex ordering for random vectors using predictable representation
  We prove convex ordering results for random vectors admitting a predictable representation in terms of a Brownian motion and a non-necessarily independent jump component. Our method uses forward-backward stochastic calculus and extends previous results in the one-dimensional case. We also study a geometric interpretation of convex ordering for discrete measures in connection with the conditions set on the jump heights and intensities of the considered processes. 
Marc Arnaudon (LMA), Jean-Christophe Breton (LMCA), Nicolas Privault