中等ECON-MSTR-014
Excess capacity in monopolistic competition means:
A. The firm is necessarily making a loss
B. Output is below the output that minimises average cost✓ 答案
C. The firm's demand curve is horizontal
D. Barriers block all entry
解說
Excess capacity is about where the firm produces on its average-cost curve. It can occur while economic profit is normal. Free entry is a feature of this structure, not a barrier.