(B) (5 points) How can the government deal with the issue of the external benefit that is described above? Please clearly explain your answer.

(B) (5 points) Calculate the tariff revenue.

(C) (5 points) Calculate the consunption distortion loss.

(D) (5 points) Calculate the production distortion loss.

(A) (15 points) Suppose scientists fnd that the scent of this specific kind of follower can cure mental disorders. Hence, for each unit of the quantity demanded brings $80 external benefit. Assume the world price pw is $60 and is not affected I by Country A's policies. Considering this external beneft, should Country A export or import how many units of this good? Please draw a graph and label all relevant points. Also, please show your calculation.

(A)(8 points) If the consumer price index in 2017 was 125, then how much did a magazine cost in 2017?

(B) (12 points) Suppose that consumers bought 30 sandwiches and 25 magazines in 2017. What was the growth rate of nominal GDP between 2016 and 2017? What was the growth rate of real GDP between 2016 and 2017? What was the GDP defator in 2017?

(A) (10 points) Derive the equilibrium output level Y* when the goods market and the money market are in equilibrium simultaneously.

(B) (10 points) Discuss how Y* is related to nominal money supply, and how this relationship is affected by h.

1.兩個額定重屋為220V的白熾燈L1和L2的V-I特性曲線如圖所示。L2的額定功率约為?__(1)__將L1和L2,串聯後接在220V 的電源上,電源内電阻忽略不計,此時L2的實際功率約為?___(2) __。

(1)玻璃容器的熱容量為?卡/℃。__(3)__