基礎econ-u05-d02
A monopolist maximises profit by producing where:
A. MR = MC, then charging the price read from its demand curve✓ 答案
B. P = MC always
C. MR is always above P
D. ATC is at its minimum regardless of demand
解說
The same profit rule applies to every firm, but for a firm facing a downward-sloping demand, MR sits below price. After setting MR = MC you must go up to the demand curve to read the price.