Classify each statement as either true or false :
- Deflation means that the overall price level is increasing at a decreasing rate.
- While theoretically possible, deflation has never been observed in the United States.
- A negative rate of inflation implies that deflation has taken place.
- Deflation means that the overall price level is decreasing.
- When the GDP deflator is less than 100, we know that deflation must have taken place this year.