【单选题】Alex is willing to buy the last ticket to the Billy Bragg concert for $15, while Jake is willing to pay $25. Alex is first in line and buys a ticket for $15. He then resells his ticket to Jake for $20...
A.
. the sum of the consumer and producer surplus to increase.
B.
. the sum of the consumer and producer surplus to decrease.
C.
. a deadweight loss of $5.
D.
. consumer surplus to decrease and producer surplus to increase.
【简答题】补全对话。 A: Hello? B: Hi, is Tim there? A: 1 . B: Hi, Tim, this is Zhang. A: Hi. Did you see that movie last night? B: Yes, it was very good. A: Sorry. I can't 2 you. Could you speak 3 ? B: Sure. How's ...