Question

微观经济学选择题

5. The short-runsupply curve of a competitive firm is the portion of ___.
A. the average variable cost curve that liesabove its marginal cost curve
B. its marginal cost curve that lies above itsaverage variable cost curve
C. its marginal cost curve that lies above itsaverage cost curve
D. its average cost curve that lies above itsmarginal cost curve

Answer 1

竞争性厂商的短期供给曲线是
A平均可变成本曲线在边际成本曲线之上的部分
B边际成本曲线在平均可变成本曲线上的部分
C边际成本曲线在平均成本曲线上的部分
D平均成本曲线在边际成本曲线上的部分

以我之见，应该是B，因为只要边际成本大于平均可变成本，在短期内企业继续生产就是有利可图的

Answer 2

B是对的。