If bank reserves are 200, the public holds 400 in currency, and the desired reserve-deposit ratio is 0.25, the deposits are ________ and the money supply is ________.

The above figure shows Bobby's indifference map for soda and juice. B1 indicates his original budget line. B2 indicates his budget line resulting from a decrease in the price of soda. What change in quantity best represents his income effect?

A) 3 B) 10 C) 15 D) 7

Macroeconomists study

a. the decisions of individual households and firms. b. the interaction between households and firms. c. economy-wide phenomena. d. regulations imposed on firms and unions.