The world is experiencing rapid change to the terms of trade. For many years, a portion of the world’s population has felt that globalization has gone too far. In recent years, their governments have started to agree, exercising policies that manipulate the amounts of exports and imports that left/enter their countries. This class is about these tools and how economists think about their effects. The class starts with simple theories of trade and the data that are used to assess these theories. It then examines the rise of globalization through institutions such as GATT and the WTO before turning to globalization’s decline with explicit attention paid to current events. We will spend a substantial amount of time examining modern empirical work assessing the effects of tariffs and quotas. We will study quantitative trade models that put numbers to theory, and close with the field of Geoeconomics which studies the political aspects of economies and resources as they pertain to international trade.