Question: How will the following events affect the demand for money? In each case, specify whether there is a shift of the demand curve or a movement along the demand curve and its direction.
a. There is a fall in the interest rate from 12% to 10%.
b. Thanksgiving arrives and, with it, the beginning of the holiday shopping season.
c. McDonald's and other fast-food restaurants begin to accept credit cards.
d. The Fed engages in an open-market purchase of U.S. Treasury bills.