4. The U.S. can produce either 100 tons of rice or 50 tons of steel (or some combination in between) per day.

Japan can produce either 40 tons of rice or 40 tons of steel (or some combination in between) per day.

a. The U.S. has an absolute advantage at producing which product(s)?

b. The U.S. has a comparative advantage at producing which product(s)?

c. Japan has an absolute advantage at producing which product(s)?

d. Japan has a comparative advantage at producing which product(s)?

e. For each country to be better off the U.S. should produce only___________________

and Japan should produce only________________ and then they should trade for what they don't produce. Why?