This article studies European contingent claims in a randomly constrained market and derives their lower-hedging costs by means of a family of auxiliary risk premiums.
This work is supported by the major project "Financial Mathematics, Financial Engineering and Financial Management" of NNSFC.
The authors employ convex analysis and stochastic control approach to study the question of hedging contingent claims with portfolio constrained to take values in a given closed, convex subset of RK, and extend the re...