3. As long as both current and future consumption are normal goods, a decrease in the interest rate will result in a drop in savings. True or False? Explain.
False
Effect of a decrease in saving rate depends on income effect and substitution effect.
According to substitution effect, decrease in interest rate increases the cost of savings and leads to decrease in savings today and more consumption today.
According to income effect if both current and future consumption are normal good, decrease in interest rate might lead to increase in savings today to have the desired level of consumption possibility in future. So it leads to decrease in consumption today and increase in savings.
So the net effect depends on which effect outweighs. If substitution effect dominates, savings decrease.
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