【经】 资本的边际效率

marginal efficiency marginal capital coefficient marginal capital expenditure capital of capital construction marginal utility of money coefficient of heat efficiency coefficient of mechanical efficiency coefficient of source efficiency coefficient of thermal efficiency direct measuring of efficiency marginal produtivity theory of interest marginal utility theory of value marginal efficiency of investment marginal cost of capital marginal productivity of capital marginal efficiency of investment schedule capital efficiency marginal returns to capital marginal capital output ratio marginal degeneration of cornea