国际贸易几个计算题
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1. You have been asked to quantify the effects of a country’s tariff on sugar. The hard
part of the work is already done: Somebody has estimated how many pounds of
sugar would be produced, consumed, and imported by the country if there were no
sugar duty. You are given the information shown in the table.
Situation with Import Tariff Estimated Situation
without Tariff
World price
$0.10 per pound $0.10 per pound
Tariff
$0.02 per pound 0
Domestic price
$0.12 per pound $0.10 per pound
Domestic consumption
(billions of pounds per year)
20 22
Domestic production
(billions of pounds per year)
8 6
Imports
(billions of pounds per year)
12 16
Calculate the following measures:
a. The domestic consumers’ gain from removing the tariff.
b. The domestic producers’ loss from removing the tariff.
c. The government tariff revenue loss.
d. The net effect on national well-being.
2. You have been asked to quantify the effects of removing an import duty; somebody
has already estimated the effects on the country’s production, consumption, and
imports. This time the facts are different. The import duty in question is a 5 percent
tariff on imported motorcycles. You are given the information shown in the table.
Current Situation with 5 percent Tariff Estimated Situation
without Tariff
World price of motorcycles
$2,000 per cycle $2,050 per cycle
Tariff at 5 percent
$100 per cycle 0
Domestic price
$2,100 per cycle $2,050 per cycle
Number of cycles
purchased domestically per year
100,000 105,000
Number of cycles
produced domestically per year
40,000 35,000
Number of cycles imports
per year
60,000 70,000
Calculate the following measures:
a. The consumers’ gain from removing the tariff.
b. The producers’ loss from removing the tariff.
c. The government tariff revenue loss.
d. The net effect on national well-being.
3. A small country imports sugar. With free trade at the world price of $0.10 per
pound, the country’s national market is:
Domestic production 120 million pounds per year
Domestic consumption 420 million pounds per year
Imports 300 million pounds per year
The country’s government now decides to impose a quota that limits sugar imports
to 240 million pounds per year. With the import quota in effect, the domestic price
rises to $0.12 per pound, and domestic production increases to 160 million pounds
per year. The government auctions the rights to imports the 240 million pounds.
a. Calculate how much domestic producers gain or lose from the quota.
b. Calculate how much domestic consumers gain or lose from the quota.
c. Calculate how much the government receives in payment when it auctions the
quota rights to import.
d. Calculate the net national gain or loss from the quota.
