X-efficiencyThe ability of a firm to get maximum output from its inputs. Failure to do so, called X-inefficiency or technical inefficiency, may be due to lack of incentives provided by competition. Improvement in X-efficiency is one hypothesized source of gain from trade. Term is due to Leibenstein (1966).
Marginal efficiency of capitalMarginal efficiency of capital
The percentage yield earned on an additional unit of capital.
Allocative efficiencyAllocative efficiency
Refers to whether or not an allocation is efficient. A change from an allocation that is not efficient to one that is may be termed an "increase" in allocative efficiency.
Capital market efficiencyCapital market efficiency
The degree to which the present asset price accurately reflects current information in the market place. See: Efficient market hypothesis.
Pricing efficiencyPricing efficiency
Also called external efficiency; a market characteristic that prices at all times fully reflect all available information that is relevant to the valuation of securities.
Engineering efficiencyEngineering efficiency
See economic efficiency.
Further SuggestionsEfficiency locus
Semistrong form efficiency
Strong form efficiency
Riegle Neal Interstate Banking and Branching Efficiency Act of 1994