Explore the fundamentals of international trade in this lecture from MIT's Principles of Microeconomics course taught by Prof. Jonathan Gruber. Gain insights into one of economics' central issues as the lecture covers key concepts including production possibilities frontier, comparative advantage, and trade markets. Learn how countries determine what to produce and trade, and understand the economic principles that drive global commerce. Part of MIT's Fall 2023 microeconomics curriculum, this 48-minute session provides essential knowledge for understanding how international markets function and why trade occurs between nations.