Incremental capital-output ratio

The Incremental Capital-Output Ratio (ICOR) is the ratio of investment to growth which is equal to the reciprocal of the marginal product of capital. The higher the ICOR, the lower the productivity of capital or the marginal efficiency of capital. The ICOR can be thought of as a measure of the inefficiency with which capital is used. In most countries the ICOR is in the neighborhood of 3. It is a topic discussed in economic growth. It can be expressed in the following formula, where K is capital output ratio, Y is output (GDP), and I is net investment.Investment shareRate of GDP growthThe reciprocal of ICORMarginal efficiency of capital as defined in the Ameco data bank of the European Commission for FRG, USA and Japan. The Incremental Capital-Output Ratio (ICOR) is the ratio of investment to growth which is equal to the reciprocal of the marginal product of capital. The higher the ICOR, the lower the productivity of capital or the marginal efficiency of capital. The ICOR can be thought of as a measure of the inefficiency with which capital is used. In most countries the ICOR is in the neighborhood of 3. It is a topic discussed in economic growth. It can be expressed in the following formula, where K is capital output ratio, Y is output (GDP), and I is net investment.