In: Economics
Suppose a business investment tax credit is introduced into an economy. Other things equal, a result of this new tax credit tends to be,
| a. | 
 the long-term real interest rate will fall and the quantity exchanged of loanable funds will fall  | 
|
| b. | 
 the long-term real interest rate will fall and the quantity exchanged of loanable funds will rise  | 
|
| c. | 
 the long-term real interest rate will rise and the quantity exchanged of loanable funds will fall  | 
|
| d. | 
 the long-term real interest rate will rise and the quantity exchanged of loanable funds will rise  | 
Option (d).
An investment tax credit increases business investment, which shifts demand curve for loanable funds to right. This increases both interest rate and quantity of loanable funds.