The Black-Litterman Model
This section will provide an overview of the Black-Litterman Model. The reader can consult
Walters (2011) for more details.
We can view the process of using the Black-Litterman Model as having three distinct steps. The
first step is the calculation of the informative prior estimate of returns. The prior is derived from
the ICAPM equilibrium portfolio using the following formula which is the closed form solution
to unconstrained Mean-Variance optimization