Glasserman, Paul; Heidelberger, Philip; Shahabuddin, Perwez - In: Mathematical Finance 12 (2002) 3, pp. 239-269
This paper develops efficient methods for computing portfolio value-at-risk (VAR) when the underlying risk factors have a heavy-tailed distribution. In modeling heavy tails, we focus on multivariate "t" distributions and some extensions thereof. We develop two methods for VAR calculation that...