A. AR equals MR, and both are equal to the constant market price
18.
In the short run, a firm under perfect competition may experience which of the following outcomes, depending on the relationship between price and average cost?
A.
Only losses, since competition always drives price down to zero
B.
Supernormal profit, normal profit, or losses, depending on whether price exceeds, equals, or falls short of average cost
C.
Only normal profit, with no other outcome ever possible
D.
Only supernormal profit, since competition guarantees high returns