The figure above shows a nation's aggregate demand curve, aggregate supply curve, and potential GDP. 
-In the figure above, the ________ gap is one trillion dollars. To close the gap, the government can change expenditure by ________ one trillion dollars.
Definitions:
Aggressiveness
The quality of being ready or likely to attack or confront; characterized by or resulting from aggression.
Correlation
A statistical measure that describes the extent to which two variables change together, but not necessarily indicating that one causes the other.
Random Assignment
A method used in experiments to ensure that every participant has an equal chance of being assigned to any given group.
Experimental Group
The group in an experiment that receives the treatment or intervention, used to assess the treatment's effect.
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