International Economics

Trade Theory

This guide helps you get your bearings in Trade Theory before you start exploring the interactive timeline, framework graph, and concept maps.

Before You Dive In

Trade Theory studies trade, capital flows, and policy in an interconnected global system.
Rough timeline: comparative advantage and Heckscher-Ohlin -> new trade theory with scale and imperfect competition -> global value chains and trade-policy geopolitics.
Start with gains from trade and distributional consequences together; separating them hides core tensions.
In Noosaga, compare frameworks by adjustment channel: prices, reallocation, exchange rates, or policy barriers.

Comparative advantageSpecialization principle based on relative opportunity costs across countries.

Terms of tradeRelative price of exports to imports affecting national purchasing power.

Current accountBalance of trade, income, and transfers with the rest of the world.

TariffTax on imports that affects domestic prices, welfare, and distribution.

Exchange rate pass-throughExtent to which currency movements translate into domestic prices.

Treating trade balances as direct scorecards of economic strength.

Assuming aggregate gains imply all groups gain without redistribution.

Confusing bilateral deficits with overall macro imbalances.

Open the interactive view and scan the framework timeline. Which frameworks came first? Which ones overlap? Where are the big transitions?

Click into individual frameworks to read what each one claims, where it came from, and how it relates to its neighbors.

See how the key ideas within a framework connect. This is useful for figuring out what to learn first and what depends on what.

Take the quiz for any framework you've read about. It's a quick way to find out whether you actually understood the core ideas or just skimmed them.