NO.PZ2023061903000096
问题如下:
Q. A firm that increases its quantity produced without any change in per-unit cost is experiencing:
选项:
A.economies of scale.
B.diseconomies of scale.
C.constant returns to scale.
解释:
C is correct. Output increases in the same proportion as input increases occur at constant returns to scale.
C是什么意思,为什么不选B