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Session Length
~17 min
Adaptive Checks
15 questions
Transfer Probes
8
International trade is the exchange of goods, services, and capital across national borders. It is one of the most important drivers of global economic growth, enabling countries to specialize in producing what they do best and to access products and resources that would otherwise be unavailable or prohibitively expensive to produce domestically. The theoretical foundations of international trade stretch back to Adam Smith's concept of absolute advantage and David Ricardo's principle of comparative advantage, both of which demonstrate that nations benefit from trade even when one country is more efficient at producing everything.
Modern international trade is governed by a complex web of agreements, institutions, and policies. The World Trade Organization (WTO) serves as the primary multilateral body overseeing trade rules among nations, while regional agreements such as the United States-Mexico-Canada Agreement (USMCA) and the European Union's single market create deeper integration among member states. Countries use a variety of policy instruments including tariffs, quotas, subsidies, and non-tariff barriers to regulate the flow of goods and services. The balance between free trade and protectionism remains one of the most debated topics in economics and political economy.
In the 21st century, international trade has become increasingly characterized by global value chains, where different stages of production are spread across multiple countries. Trade in services, digital goods, and intellectual property has grown rapidly alongside traditional merchandise trade. Issues such as trade deficits, currency manipulation, environmental standards, labor rights, and the distributional effects of trade on domestic workers and industries continue to shape policy debates worldwide. Understanding international trade is essential for grasping how the global economy functions and how policy decisions affect prosperity across nations.
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The principle that a country should specialize in producing and exporting goods for which it has the lowest opportunity cost relative to other countries, even if it does not have an absolute advantage in producing any good.
Example: Portugal may produce both wine and cloth more cheaply than England, but if Portugal's relative advantage is greater in wine, both countries benefit when Portugal exports wine and England exports cloth.
The ability of a country to produce a good using fewer resources than another country. A nation has an absolute advantage when it is more efficient at producing a specific product.
Example: Saudi Arabia has an absolute advantage in oil production because its geological endowments allow it to extract oil at a much lower cost per barrel than most other countries.
A tax imposed by a government on imported goods or services. Tariffs raise the price of imports, making domestic products relatively cheaper, and generate revenue for the government.
Example: The United States imposed a 25% tariff on imported steel in 2018, which raised the price of foreign steel and aimed to protect domestic steel producers from international competition.
A situation in which a country's imports of goods and services exceed its exports. A persistent trade deficit means the country is spending more on foreign products than it earns from selling its own goods abroad.
Example: The United States has run a trade deficit with China for decades, importing significantly more consumer electronics, clothing, and manufactured goods than it exports to China.
A pact between two or more nations to reduce or eliminate barriers to imports and exports among them, including tariffs, quotas, and other restrictions on the flow of goods and services.
Example: The North American Free Trade Agreement (NAFTA), replaced by the USMCA in 2020, eliminated most tariffs on goods traded between the United States, Canada, and Mexico.
A comprehensive record of all economic transactions between residents of a country and the rest of the world during a specific period, including the current account, capital account, and financial account.
Example: Japan's balance of payments shows large current account surpluses driven by its manufacturing exports, offset by capital outflows as Japanese investors purchase foreign assets.
A government-imposed limit on the quantity or value of a good that can be imported or exported during a given time period. Quotas directly restrict trade volume rather than raising prices through taxes.
Example: The European Union has historically used quotas on textile imports from developing countries, limiting the number of garments that could enter the EU market in a given year.
A trade theory stating that countries export goods that intensively use their abundant factors of production and import goods that intensively use their scarce factors. It explains trade patterns based on differences in factor endowments.
Example: China, with its large labor force, exports labor-intensive manufactured goods such as clothing and electronics assembly, while Australia, rich in natural resources, exports minerals and agricultural products.
More terms are available in the glossary.
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