refer to the diagrams. the numbers in parentheses after the ad1, ad2, and ad3 labels indicate the levels of investment spending associated with each curve. all figures are in billions. which of the following would shift the money supply curve from ms1 to ms3? group of answer choices an increase in the discount rate. an increase in the reserve ratio. sales of u.s. securities by the fed in the open market. purchases of u.s. securities by the fed in the open market.
