NO.PZ2016010802000047
问题如下：
The short-term shutdown point of production for a firm operating under perfect competition will most likely occur when:
选项：
A.
price is equal to average total cost.
B.
marginal revenue is equal to marginal cost.
C.
marginal revenue is less than average variable costs.
解释：
C is correct.
The firm should shut down production when marginal revenue is less than average variable cost.
考点：停止营业点
解析：当边际收益小于平均可变成本时，厂商就应该停止营业。所以应该选C
记得上课画图是比较MC和AVC的关系 是不是P最低应高于MC，AVC=MC是MC的最低点，P小于这个点停止营业，ATC=MC是ATC的最低点，P大于这个点长期才存在于市场？这道题P=MR，所以选C 为什么MC与AVC，ATC相交于最低点记不清了，可以麻烦老师解释一下吗？
