In this paper we investigate the approximations for the distribution function of a sum S of lognormal random variables. These approximations are obtained by considering the conditional expectation E[SΛ] of S with respect to a conditioning random variable Λ.The choice of Λ is crucial in order...

The Basel Accords represent landmark financial agreements for the regulation of commercial banks. The main purpose of the accords was to strenghten the soundness and stability of the international banking system by providing a minimum standard for capital requirements. In 2004, the Basel...

This paper illustrates an analytic method that can be used to determine the total capital requirements necessary to properly provide for the future obligations of a portfolio of annuity liabilities and to protect the enterprise from the related risks it faces. This example is based on the work...

In an actuarial or financial context one often encounters the calculation of risk measures of random variables of the type S r:1 Xi' In many applications, the individual risks Xi are not mutually independent, for example because their outcomes are all influenced by the same economic or physical...