It is well known that a random vector with given marginals is comonotonic if and only if it has the largest convex sum, and that a random vector with given marginals (under an additional condition) is mutually exclusive if and only if it has the minimal convex sum. This paper provides an...

The computation of various risk metrics is essential to the quantitative risk management of variable annuity guaranteed bene ts. The current market practice of Monte Carlo simulation often requires intensive computations, which can be very costly for insurance companies to implement and take so...

This paper examines a class of premium principles which are (i) comonotonic additive and (ii) preserving stochastic dominance. The representation for this class is a transform on the decumulative distribution function. It has close connections with the recent developments in economic decision...

This paper proposes a class of weak additivity concepts for an operator on the set of real valued functions on a finite state space Ω, which include additivity and comonotonic additivity as extreme cases. Let E ⊆ 2Ω be a collection of subsets of Ω. Two functions x and y on Ω are...

The relationships in the stock markets, the impact on them of the structural changes in the economy, the ability to adequately forecast for a certain period are investigated. The analysis of the interdependence of stock prices by using copula functions is carried out. The statistical estimations...

In finite markets with short-selling, conditions on agents' utilities insuring the existence of efficient allocations and equilibria are by now well understood. In infinite markets, a standard assumption is to assume that the individually rational utility set is compact. Its drawback is that one...