Comparative Advantage and Gains from Trade

Terminology

  • Absolute advantage: The ability of an individual, firm, or country to produce more of a good or service than competitors using the same amount of resources.

  • Comparative advantage: The ability of an individual or group to carry out a particular economic activity more efficiently than another individual or group.

  • Comparative advantage matters more when considering specialization, gains from trade, etc.

  • Gains from trade: The increase in overall welfare and economic efficiency that results from specialization and the exchange of goods and services between individuals or countries.

  • To find comparative advantage, you must calculate opportunity cost.

  • To calculate opportunity cost for an output problem, create a table like this one:

  • Output problems: Data represents output produced from a fixed amount of input.

  • To find the opportunity cost of product A, take the data given for product B and divide it by product A.

  • Input problems: Data represents input required to produce a fixed amount of output. Opportunity cost of product A = product A / Product B

  • Terms of trade: An agreed upon exchange rate of two goods between two producers

How to Determine if Terms of Trade are Mutually Beneficial?

  • Do the terms of trade for a particular good/service fall between the opportunity costs of the two producers?

  • Do the terms of trade result in gains from trade for both economies?

  • After specialization has been established, will there be consumption beyond the production possibilities curve?