Question

A year ago a country reduced the tax rate on all interest income from 20% to 10%. During the year private saving was $500 billion as compared to $400 billion the year before the tax reform. Taxes on interest income fell by $10 billion. Assuming no other changes in income, or government revenues or spending, which of the following is correct? a. the substitution effect was larger than the income effect; national saving rose b. the substitution effect was larger than the income effect; national saving fell c. the income effect was larger than the substitution effect; national saving rose d. the income effect was larger than the substitution effect; national saving fell

Answer 1

a. the substitution effect was larger than the income effect; national saving rose

Step-by-step explanation:

In macroeconomics, the substitution effect means that as the return on savings increases, households will substitute current spending and will save more in order to be able to spend more in the future.

In this case, since interests from bonds, CDs, etc., are taxed at a much lower rate, the after tax return from investing on any of them increases. Households consider that the money that they can earn now by investing on them is more valuable than consuming goods or services immediately.