Advanced analysis) Answer the question on the basis of the following information for a private closed economy.
where S is saving, Ig is gross investment, i is the real interest rate, and Y is GDP.
Refer to the information. If the real interest rate is 5 (percent), investment will be:
$10 and the equilibrium GDP will be $120.
$15 and the equilibrium GDP will be $100.
$10 and the equilibrium GDP will be $75.
$15 and the equilibrium GDP will be $180.