Which term describes the phases of expansion and contraction in an economy over time?

In the above figure, which curve shows a positive relationship between x and y?

A) only curve A B) only curve B C) only curve C D) All the curves show a positive relationshi

The Fed's policy tools include all the following except _______

A. required reserve ratio and open market operations B. quantitative easing C. discount rate D. taxing banks' deposits at the Fed