INVESTMENT AND RATE OF INTEREST


• Investment = a change in the stock of capital over a period of time.

• Investments are undertaken upto the point at which the yield from an asset cover the cost of investment.

• The rate of interest represents the cost side of investment.

• A change in the rate of interest has a direct impact on the return on a sum of money lent.

• An increase in the rate of interest leads to future incomes being discounted more heavily.

• Therefore, some investments are not undertaken, as they fail to cover the cost.

• Some less productive investment are thus abandoned.

• The level of planned investment is inversely related to interest rate, assuming other variables unchanged (dI/dr) < 0.

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