Productive vs. Allocative Efficiency
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What Is Productive vs. Allocative Efficiency?
Productive and allocative efficiency are two distinct standards for judging economic outcomes. Productive efficiency means producing at any point on the production possibilities frontier, using all resources fully so that no more of one good can be made without making less of another. Allocative efficiency is more demanding: it means producing the specific combination of goods that society most values, the single point on the frontier that best matches people's preferences. An economy can be productively efficient yet allocatively inefficient if it makes the wrong mix, for example churning out goods no one wants. Allocative efficiency requires producing the right things, not merely producing them without waste.
Why It Matters
The distinction between the two efficiencies clarifies what it means for a market to work well. Reaching the frontier, or productive efficiency, is necessary but not sufficient; society also needs the mix on the frontier that maximizes total value. This is where competitive markets shine: at the competitive equilibrium, absent externalities, the sum of consumer and producer surplus is maximized and the outcome is allocatively efficient, meaning resources flow to the goods people value most. The pairing also frames the cost of market failures and distortions, which can leave an economy productively efficient but producing the wrong basket of goods. Together the concepts let economists separate whether resources are being wasted from whether the right things are being made.