The consumption function.
Answer to Problem 1QQ
Option ‘b’ is the correct answer.
Explanation of Solution
Option (b):
According to the Keynesian consumption function, the saving rate in the economy increases as the income of the people increases. However, the data collected by Simon Kuznets reveals that the saving rate is stable. According to Keynes, the marginal propensity to consume is less than one and the average propensity to consume decreases as the income increases. This implies that as the income of people increases, the proportionate level of saving increases compared to the consumption. However, the studies conducted by Kuznets reveal that the average propensity to consume does not fall in the long run. This implies that the saving will not increase and hence it remains constant. Thus, option (b) is correct.
Option (a):
According to the Keynesian function, as the income of the people increases, the saving rate of the economy increases. However, the studies conducted by Kuznets show that the saving rate is stable and it does not decrease in the long run. Thus, option (a) is incorrect.
Option (c):
According to the Keynesian function, as the income of the people increases, the saving rate of the economy increases and it will not decrease. However, the studies conducted by Kuznets show that the saving rate is stable and it does not increase in the long run. Thus, option (c) is incorrect.
Option (d):
According to the Keynesian function, as the income of the people increases, the saving rate of the economy increases and it will not decrease. However, the studies conducted by Kuznets show that the saving rate is stable. Thus, option (d) is incorrect.
Savings: Savings is defined as that part of income that is not consumed in the current period and is to be used for future consumption.
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