In an economic context, which of the following accurately describe the term "velocity?" Place the descriptions below under a or b:
a. accurate descriptions of velocity :
b. not descriptive of velocity :

- How quickly changes in the monetary policy make their way throughout the econonmy
- How quickly money circulates around the economy
- How quickly your grade in this class will skyrocket if you get this question right
- A variable that was predictable in the 1970s but began to behave more eratically in the 1980s
- Nominal GDP divided by the quanitity of money
- The speed at which economic business cycle theories come and go
- How quickly that an economy's GDP grows
- How quickly an economy rebounds from recessions