中等ECON-PRDC-014
Economies of scale differ from division of labour because economies of scale:
A. Are a fall in long-run average cost as the scale of output grows✓ 答案
B. Can occur only in primary production
C. Mean marginal product is negative
D. Are a movement along supply caused by the good's own price
解說
A small shop can divide tasks without growing its scale. Economies of scale refer to long-run average cost as output scale increases. They are not negative marginal product and not a price movement.