Dictionary of Accounting Terms: product mix decisions
product mix decisions
decisions that concern the relative amounts of each type of product or service that, given demand and resource constraints, will maximize total profits. For example, if the firm can sell as much as it can produce and has a single resource constraint, the decision rule is to maximize the contribution margin per unit of the constrained resource. However, given multiple constraints, the decision is more difficult and more sophisticated techniques must be used, such as linear programming for example.

