3. Gains from trade

Consider two neighboring island countries called Felicidad and Arcadia. They each have 4 million labor hours available per month that they can use to produce jeans, rye, or a combination of both. The following table shows the amount of jeans or rye that can be produced using 1 hour of labor.

Country Jeans Rye
(Pairs per hour of labor) (Bushels per hour of labor)
Felicidad 8 32
Arcadia 12 24
Initially, suppose Arcadia uses 1 million hours of labor per month to produce jeans and 3 million hours per month to produce rye, while Felicidad uses 3 million hours of labor per month to produce jeans and 1 million hours per month to produce rye. Consequently, Felicidad produces 24 million pairs of jeans and 32 million bushels of rye, and Arcadia produces 12 million pairs of jeans and 72 million bushels of rye. Assume there are no other countries willing to trade goods, so, in the absence of trade between these two countries, each country consumes the amount of jeans and rye it produces.

Felicidad's opportunity cost of producing 1 pair of jeans is _____ of rye, and Arcadia's opportunity cost of producing 1 pair of jeans is _____ of rye. Therefore, _____ has a comparative advantage in the production of jeans, and ____ has a comparative advantage in the production of rye.

Suppose that each country completely specializes in the production of the good in which it has a comparative advantage, producing only that good. In this case, the country that produces jeans will produce ______ millions pairs per month, and the country that produces rye will produce ______ millions bushels per month.

In the following table, enter each country's production decision on the third row of the table (marked "Production").

Suppose the country that produces jeans trades 26 million pairs of jeans to the other country in exchange for 78 million bushels of rye.

In the following table, select the amount of each good that each country exports and imports in the boxes across the row marked "Trade Action," and enter each country's final consumption of each good on the line marked "Consumption."

When the two countries did not specialize, the total production of jeans was 36 million pairs per month, and the total production of rye was 104 million bushels per month. Because of specialization, the total production of jeans has increased by ____ million pairs per month, and the total production of rye has increased by _____ million bushels per month.

Because the two countries produce more jeans and more rye under specialization, each country is able to gain from trade.

Calculate the gains from trade—that is, the amount by which each country has increased its consumption of each good relative to the first row of the table. In the following table, enter this difference in the boxes across the last row (marked "Increase in Consumption").

Felicidad

Arcadia

Jeans Rye Jeans Rye
(Millions of pairs) (Millions of bushels) (Millions of pairs) (Millions of bushels)
Without Trade
Production 24 32 12 72
Consumption 24 32 12 72
With Trade ? ? ? ?
Production ? ? ? ?
Trade action ? ? ? ?
Consumption ? ? ? ?
Gains from Trade ? ? ? ?
Increase in Consumption ? ? ? ?