(game theory, economics) Describing a situation in which the profit of one party cannot be increased without reducing the profit of another.

Alternative spelling of Pareto efficient

(philosophy, natural science) The being or event which physically brings about the change or motion that produces another occurrence or thing.

plural of efficient cause

efficient with respect to cost; producing a large effect relative to cost

(economics) The idea that the prices generated by a financial market represent the best possible estimate of any investment’s value.

(US) bachelor apartment

plural of efficiency apartment

Synonym of Pareto optimality

(economics) a situation in which it is impossible to make one generation better off without making another generation worse off