1
1. The short-run market supply curve in a perfectly
competitive market is -
Which of the following completes the
sentence above?
A) the horizontal sum of the total cost curves of
all the firms operating in an industry
B) the horizontal sum of the average cost
curves of all the firms operating in an
industry
C) the long-run market supply curve which is
the average cost curve
D) out of question since there is no short-run
market supply curve
E) the horizontal sum of the marginal cost
curves (above the minimum of AVC) of all
the firms operating in an industry