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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 ...
the capital-output ratio is constant (i.e. a fixed amount of output can always be turned into the same amount of capital); real wages change according to a linearized Phillips curve, where wages rise when close to full employment. The model uses the variables q is output k is (homogeneous) capital w is the wage rate a is labour productivity
Output per worker grows at a roughly constant rate that does not diminish over time. Capital per worker grows over time. The capital/output ratio is roughly constant. (1+2) The rate of return on capital is constant. The share of capital and labor in net income is nearly constant. The wage grows over time. (2+4+5)
Where the capital-output ratio will depend upon the relationship of the growth of capital and the growth of productivity. Wages and profits constitute the income , where wages comprise salaries and earnings of manual labor, and profits comprise incomes of entrepreneurs as well as property owners.
If, for example, this ratio is greater than 1, machinery can be bought at one price and then generate output worth the larger amount that is reflected in its market value, giving positive economic profit. In some research, investment is modeled as an increasing function of the gap between the optimal capital stock and the current capital stock ...
Let k be the capital/labour ratio (i.e., capital per capita), y be the resulting per capita output (= ()), and s be the savings rate. The steady state is defined as a situation in which per capita output is unchanging, which implies that k be constant. This requires that the amount of saved output be exactly what is needed to (1) equip any ...
This model assumes that the stock of capital goods (K) is proportional to the level of production (Y): K = k×Y. This implies that if k (the capital-output ratio) is constant, an increase in Y requires an increase in K. That is, net investment, I n equals: I n = k×ΔY. Suppose that k = 2 (usually, k is assumed to be in (0,1)).
Therefore, at the equilibrium, the capital/output ratio depends only on the saving, growth, and depreciation rates. This is the Solow–Swan model's version of the golden rule saving rate . Since α < 1 {\displaystyle {\alpha }<1} , at any time t {\displaystyle t} the marginal product of capital K ( t ) {\displaystyle K(t)} in the Solow–Swan ...