According to the graph shown, consumer surplus is:
A. $36.
B. $72.
C. $120
D. None of these.
A. $36.
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The economy pictured in the figure below has a(n) ________ gap with a short-run equilibrium combination of inflation and output indicated by point ________. 
A. recessionary; B B. recessionary; C C. recessionary; A D. expansionary; A
Assume Congress enacts a $10 billion increase in spending and a $10 billion tax increase to finance the additional government spending. The result of this balanced-budget approach is a:
a. $20 billion increase in aggregate demand. b. $10 billion increase in aggregate demand. c. $100 billion increase in aggregate demand. d. $10 billion decrease in aggregate demand.
Nearly _____________ of the world's people have never made a phone call.
Fill in the blank(s) with the appropriate word(s).
If the demand for a monopolist's product increases, its
A. marginal revenue decreases, making it more profitable to hire more workers. B. marginal revenue increases, making it more profitable to hire more workers. C. marginal revenue increases, making it more profitable to hire fewer workers. D. marginal revenue decreases, making it more profitable to hire fewer workers.