Fully Flexible Extreme Views
Journal of Risk, Vol. 14, No. 2, pp. 39-49, Winter 2011/2012
11 Pages Posted: 25 Jan 2010 Last revised: 12 Jan 2012
Date Written: January 25, 2010
We extend the Fully Flexible Views generalization of the Black-Litterman approach to effectively handle extreme views on the tails of a distribution.
First, we provide a recursive algorithm to process views on the conditional value at risk, which cannot be handled directly by the original implementation of Fully Flexible Views.
Second, we represent both the prior and the posterior distribution on a grid, instead of by means of Monte Carlo scenarios: this way it becomes possible to cover parsimoniously even the far tails of the underlying distribution. Documented code is available for download.
Keywords: Entropy Pooling, Kullback-Leibler, Black-Litterman, VaR, CVaR, grid-probability pair, Monte Carlo, Gauss-Hermite polynomials, Newton-Raphson, kernel estimator
JEL Classification: C1, G11
Suggested Citation: Suggested Citation