
P1: OTA/XYZ P2: ABC
JWBT468-c15 JWBT468-Burghardt March 15, 2011 13:28 Printer Name: Courier Westford
334 Portfolio Construction
With this data set, we estimated the means, volatilities, and correlations
of the managers’ returns and used them to simulate return streams from which
we could sample the returns of portfolios comprising 5, 10, and 20 managers.
In this way, we can produce distributions that reflect correlations as well as
managers’ own mean returns. The managers for these portfolios were chosen
at random but then optimally weighted subject to constraints. Under these
constraints, the weight given any one manager could be no more than double ...