Recall that David Ricardo argued that if each country specializes in its comparative advantage, it will benefit from trade, and total global output will increase. How can we show gains from trade as a result of comparative advantage and specialization?

Country Quantity produced after 100% specialization — Oil (barrels) Quantity produced after 100% specialization — Corn (bushels)
Saudi Arabia 100 0
United States 0 100
Total World Production 100 100