Refer to the data. If Firm B merged with Firm C, the industry's four-firm concentration ratio would ____ and its Herfindahl index would ____.
A. rise; rise
B. fall; rise
C. remain the same; rise
D. remain the same; fall
A. rise; rise
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If the Fed decreases the nominal interest rate by 2 percent, how will the real interest rate change in the short run?
a. It will decrease by 1 percent. b. It will decrease by 2 percent. c. It will increase by 1 percent. d. It will increase by 2 percent.
If a producer is willing to receive at least $2 for a pen that she manufactures but she actually receives $7 for it. The producer surplus of the pen for that producer is
A) $2. B) $5. C) $9. D) -$5.
Refer to the figure below. In response to gradually falling inflation, this economy will eventually move from its short-run equilibrium to its long-run equilibrium. Graphically, this would be seen as 
A. long-run aggregate supply shifting leftward B. Short-run aggregate supply shifting upward C. Short-run aggregate supply shifting downward D. Aggregate demand shifting leftward
As a business type, corporations ________ in the United States
A) earn the majority of revenues B) are the most common C) are the least common D) are subject to the fewest taxes