Allocative efficiency occurs when___?

Allocative efficiency occurs when___?

• A. The produced output is at the minimum average cost.
• B. Social welfare is maximized when all markets are perfectly competitive.
• C. The price equals marginal cost but not necessarily reflect society's preferences.
• D. The produced output mix reflects society’s preferences and price equals marginal cost.

Answer: (D)

Allocative efficiency means resources are used to produce the combination of goods and services that people value most, so the price reflects the true cost to society of producing one more unit. When price equals marginal cost, the value society places on an additional unit (the price) matches the resources sacrificed to produce it (the marginal cost), guiding resources toward the right mix of goods. The statement that the produced output mix reflects society’s preferences and price equals marginal cost captures both producing the right mix and the efficiency signal that coordinates production. The other ideas miss something essential: producing at the lowest average cost is about productive efficiency, not the mix of goods; and while perfect competition helps, it doesn’t automatically guarantee the exact preferred mix or address potential externalities; and price equaling marginal cost without reflecting society’s preferences could still misallocate resources.

Allocative efficiency means resources are used to produce the combination of goods and services that people value most, so the price reflects the true cost to society of producing one more unit. When price equals marginal cost, the value society places on an additional unit (the price) matches the resources sacrificed to produce it (the marginal cost), guiding resources toward the right mix of goods. The statement that the produced output mix reflects society’s preferences and price equals marginal cost captures both producing the right mix and the efficiency signal that coordinates production.

The other ideas miss something essential: producing at the lowest average cost is about productive efficiency, not the mix of goods; and while perfect competition helps, it doesn’t automatically guarantee the exact preferred mix or address potential externalities; and price equaling marginal cost without reflecting society’s preferences could still misallocate resources.