Uses and Misuses of the Black-Litterman Model in Portfolio Construction

47 Pages Posted: 19 Dec 2012

Date Written: December 18, 2012

Abstract

The Black-Litterman model has gained popularity in applications in the area of quantitative equity portfolio management. Unfortunately, many recent applications of the Black-Litterman to novel aspects of quantitative portfolio management have neglected the rigor of the original Black-Litterman modelling. In this article, we critically examine some of these applications from a Bayesian perspective. We identify three reasons why these applications may create losses to investors. These three reasons are: (1) Using a prior without "anchoring" the prior to an equilibrium model, (2) Using a prior and an equilibrium model that conflict with one another, and (3) Ignoring the implications of the estimation error of the variance-covariance matrix. We also quantify the loss first analytically, and also numerically based on historical data on 10 major world stock market indices. Our conservative estimate of the loss is around a 1% reduction in the annualized return of the portfolio.

Keywords: Black-Litterman, Bayes rule, Portfolio Construction, Econometric techniques, simulations

JEL Classification: G0

Suggested Citation

Chincarini, Ludwig B. and Kim, Daehwan, Uses and Misuses of the Black-Litterman Model in Portfolio Construction (December 18, 2012). Available at SSRN: https://ssrn.com/abstract=2191278 or http://dx.doi.org/10.2139/ssrn.2191278

Ludwig B. Chincarini (Contact Author)

University of San Francisco ( email )

2130 Fulton Street
San Francisco, CA 94117
United States

Daehwan Kim

Konkuk University ( email )

1 Hwayang-dong
Kwangjin-gu
Seoul, 143-701
Korea