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Content: independently acting buyers and sellers and freedom to enter or leave markets. Specialization—the division of labor—enhances productivity and efficiency by: allowing workers to take advantage of existing differences in their abilities and skills. avoiding the time loss involved in shifting from one production task to another. allowing workers to develop skills by working on one, or a limited number, of tasks. all of the means identified in the other answers. all of the means identified in the other answers. On the basis of the information, it can be said that: no coincidence of wants exists between any two states. a coincidence of wants exists between Michigan and Washington.