according to the loanable funds model, which of the following events would result in higher interest rates and greater saving? a. the government goes from running a budget deficit to running a budget surplus. b. firms become pessimistic about the future and, as a result, they cut back on their plans to buy new equipment and build new factories. c. congress passes a reform of the tax laws that encourages greater investment. d. congress passes a reform of the tax laws that encourages greater saving.