Multiple Choice
The main difference between the short run and the long run is that
A) firms earn losses in the long run, but not in the short run.
B) the long run always refers to a time period of one year or longer.
C) in the long run, only one input can be fixed.
D) in the short run, one or more inputs are fixed.
E) none of the above
Correct Answer:

Verified
Correct Answer:
Verified
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