Global Trade Institutions and Agreements
Trade doesn't just happen on its own. Governments shape it through institutions, agreements, and policies at three levels: global, regional, and national. Understanding how these layers interact is central to grasping modern trade policy.
World Trade Organization (WTO) and General Agreement on Tariffs and Trade (GATT)
GATT was established in 1947 with a straightforward goal: reduce trade barriers through rounds of multilateral negotiation. Over several decades, successive rounds (like the Kennedy Round and the Uruguay Round) brought tariffs down significantly across participating countries.
In 1995, the World Trade Organization (WTO) replaced GATT as the main global trade body. The WTO does more than just negotiate lower tariffs. It serves three core functions:
- Forum for trade negotiations among its 160+ member countries
- Dispute resolution when countries disagree about whether trade rules have been violated
- Enforcement of trade agreements to ensure members follow the rules they've signed onto
The WTO oversees several key agreements:
- GATT (still in effect for trade in goods)
- General Agreement on Trade in Services (GATS) for services like banking and telecommunications
- Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPS) for patents, copyrights, and trademarks
A core WTO principle is non-discrimination: member countries generally can't give one trading partner better treatment than another (this is called "most-favored-nation" treatment). Regional trade agreements are a major exception to this rule.

Regional and National Trade Policies

Regional Trade Agreements
Regional trade agreements (RTAs) are treaties between two or more countries that reduce trade barriers among the signatories. They go further than general WTO commitments by creating preferential access between members.
The European Union (EU) is the most deeply integrated example. EU member states operate a single market with free movement of goods, services, capital, and people. The EU also adopts a common external tariff, meaning all members charge the same tariff on imports from non-EU countries.
NAFTA, signed by the United States, Canada, and Mexico, eliminated most tariffs among the three countries starting in 1994. It was replaced by the United States-Mexico-Canada Agreement (USMCA) in 2020, which updated provisions on digital trade, labor standards, and auto manufacturing rules of origin.
Other notable RTAs include:
- ASEAN Free Trade Area (Southeast Asia)
- Mercosur (Southern Common Market, in South America)
- African Continental Free Trade Area (AfCFTA), one of the world's largest by number of participating countries
RTAs produce two important effects to know:
Trade creation occurs when reduced barriers cause member countries to import more from each other, replacing less efficient domestic production with cheaper imports from a partner. This increases overall efficiency.
Trade diversion occurs when members shift imports away from a more efficient non-member country toward a less efficient member country, simply because the member gets preferential tariff treatment. This can reduce overall efficiency even as trade between members grows.
National-Level Trade Policies
Individual countries also set their own trade policies, though these must comply with WTO rules. The three most common tools are tariffs, quotas, and anti-dumping measures.
Tariffs are taxes on imported goods. They come in two forms:
- Specific tariffs: a fixed dollar amount per unit (e.g., $0.50 per kilogram of imported steel)
- Ad valorem tariffs: a percentage of the good's value (e.g., 10% of the import price)
Both types raise the price of imports, which protects domestic producers from foreign competition but makes consumers pay more.
Quotas are quantitative limits on how much of a good can be imported. A quota might cap sugar imports at 1 million tons per year, for instance. Quotas can be more restrictive than tariffs because they set a hard ceiling on imports regardless of price. They also tend to create inefficiencies, since once the quota is filled, no additional imports enter even if foreign producers are cheaper.
Anti-dumping measures target the practice of dumping, which occurs when a foreign company exports a product at a price below what it normally charges in its home market. Countries can impose anti-dumping duties (extra tariffs) to offset the artificially low price. The WTO's Anti-Dumping Agreement sets rules for when and how these duties can be applied, requiring countries to prove that dumping is occurring and that it's harming a domestic industry.
National trade policies operate within WTO constraints. Beyond tariffs and quotas, countries can also use safeguard measures (temporary protection for an industry facing a sudden surge of imports) and countervailing duties (tariffs that offset foreign government subsidies). When disputes arise over whether a country's policies violate trade rules, the WTO's dispute settlement mechanism provides a structured process for resolution.