Productive efficiency refers to . a. the use of the least-cost method of production. b. the production of the product mix most wanted by society. c. the full employment of all available resources. d. production at some point inside of the production possibilities curve.

A. the use of the least-cost method of production

Explanation:

productive efficiency occurs when a good or a service is produced at the lowest possible cost. In simple terms, the concept is illustrated on a production possibility frontier (PPF), where all points on the curve are points of productive efficiency.

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