financial position, at the end of a given investment period, and describe it by a real-
valued random variable X on a finite …, WCEα defined, for a real-valued random variable X, by
WCEα(X) := − inf{E[X |B] , B ∈F, P(B) ≥ α } .
It can be easily …-valued risks
Given a real-valued random variable X, and a confidence level α ∈ (0,1), the α%
worst realisations of X, situated at …