ECON 2304 Lecture Notes - Lecture 13: Market Power, Comparative Advantage, Opportunity Cost
Document Summary
A country has a comparative advantage in a good if it produces the goods at lower opportunity cost than other countries. Countries can gain from trade if each exports the goods in which it has a comparative advantage. Now we apply the tools of welfare economics to see where these gains come from and who gets them. Pw = the world price of a good, the price that prevails in world markets. Country has comparative advantage in the good. Under the free trade, country exports the good. Under free trade, country imports the good. A small economy is a price taker in world markets. Not always true especially for the u. s. but simplifies the analysis without changing its lessons. When a small economy engages in free trade, pw is the only relevant price: No seller would accept less than pw, since she could sell the good for pw in world markets.