The marginal note investment ratio, briefly b_Y, describes all purchases between the investment demand I and with the domestic level of production Y directly or indirectly which are connected investment-affecting sizes. For this count for example the utilization of capacity and profit or paragraph expectations.

The investment demand I leaves itself now as I = I_ {autonomously} + b_Y \ cdot to Y to express.

With this investment function the investments are a function of the income, it change in same direction as the economical income. Similarly the keynesianische consumer function is specified (fixed). Frequently however the investment function is specified deviating from the consumer function to the accelerator principle, which investments change then not in same direction as the gross income, but as the change of the gross income.

For the consumption and saving the marginal note consumer ratio and the marginal note rate of saving can similar be defined.

Articles in category "Marginal note investment ratio"

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