中等ECON-PRDC-006
In the short run, a Hong Kong printing firm's average total cost (ATC) curve is U-shaped. The minimum point of ATC occurs where:
A. MC = AVC
B. MC = ATC✓ 答案
C. MC = AFC
D. AVC = AFC
解說
MC intersects ATC at its minimum point. When MC < ATC, ATC falls; when MC > ATC, ATC rises.