8. According to the equilibrium in the loanable funds market, which statement is false: a. An increase in total factor productivity is associated with an increase in investment and increases the real interest rate. b. An increase in tax on the firm’s revenue is associated with a decrease in investment and decreases the real interest rate. c. An increase in government spending (without changes in taxes) decreases investment and decrease the real interest rate. d. An increase in the number of workers leads to an increase in investment and increases the real interest rate.