[单选]Total surplus is equal to
A. value to buyers - profit to sellers.
B. value to buyers - cost to sellers.
C. consumer surplus x producer surplus.
D. (consumer surplus + producer surplus) x equilibrium quantity.
查看答案
[单选]We can say that the allocation of resources is efficient if
A. producer surplus is maximized.
B. consumer surplus is maximized.
C. total surplus is maximized.
D. sellers’ costs are minimized.
[判断]所有买家都受益于限制性的价格上限。
A. 对
B. 错
[判断]在限制性的价格上限下发展起来的配给机制通常是低效的。
A. 对
B. 错
[判断]对卖者征收 1 美元的税,均衡价格总是增加 1 美元。
A. 对
B. 错