Which statement best defines a closed economy? a) It does not allow immigration. b) It does not have free markets. c) It does not trade with other economies. d) It does not have freedom of entry and exit. What would an increase in the budget deficit most likely do to investment spending? a) It would make investment spending rise because the interest rate rises. b) It would make investment spending fall because the interest rate rises. c) It would make investment spending rise because the interest rate falls. d) It would make investment spending fall because the interest rate falls