The Linear Constraints topic is available only if you allow ProVal to calculate the mixes on the efficient frontier. This topic allows you to place additional constraints on the various asset classes.

Each selected asset class is listed across the top of a table, and you are asked to enter the coefficients, relational operation and constant for each constraint, as follows:

• a coefficient for one or more asset classes,

• the relational operation (<=, =, or >=), and

• the constant that completes the linear constraint.

For example, you could specify that stocks plus bonds must comprise less than or equal to (<=) 90% of the portfolio and that bonds plus T-Bills must comprise at least (>=) 60%.