In this paper, we examine the influences of risk aversion on various aspects of portfolio optimization. Our main message is that the risk aversion parameters in the Barra Optimizer provide users with the flexibility to control or adjust the risk levels of their optimal portfolios. They are...

Trade paring constraints enable portfolio managers to control the number of trades when constructing and rebalancing their portfolios. Allowing users to set trade paring constraints is a new feature in the Barra Optimizer (first available in Aegis 4.4 and also in Barra Open Optimizer 1.2)....