Protectionism

Protectionism is a government policy of restricting imports or favoring domestic producers in order to protect local industries and jobs from foreign competition. Its main tools are tariffs, import quotas, subsidies for local firms, and rules or standards that make foreign goods harder to sell. Governments adopt it to support employment, build new industries, protect strategic sectors or gain bargaining power.

Protectionism is the opposite of free trade, and most real trade policy mixes the two. It overlaps with industrial policy, which also tries to shape what a country produces, and with trade-defence measures such as anti-dumping duties that the World Trade Organization permits within limits. Taken to its extreme it leads to autarky, an economy that barely trades at all. Whether it helps or harms a country is one of the oldest disputes in economics.

Think of a school canteen that charges extra for any lunch brought from outside. The canteen keeps its customers and its staff, and might use the breathing space to improve its cooking. But every pupil now pays more or eats less well, and the canteen has less reason to get better if nobody can easily go elsewhere.

That is the trade-off at the heart of protectionism. A country that shields an industry protects the people who work in it, sometimes helps it grow strong, and can keep vital production at home. The cost is usually spread thinly across everyone else in the form of higher prices and less choice, which is why the benefits are easy to see and the costs are easy to miss.

• Tariffs. Taxes on imported goods, either a percentage of value or a fixed amount per unit.
• Quotas and licences. Caps on the quantity of imports, including tariff-rate quotas and so-called voluntary export restraints.
• Subsidies. Grants, tax breaks or cheap loans to domestic producers or exporters.
• Non-tariff barriers. Local-content requirements, public procurement preferences, product standards, licensing rules and strict rules of origin.
• Currency and capital measures. Undervalued exchange rates, exchange controls or import deposit schemes that raise the cost of foreign goods.

Supporters advance several arguments. The infant industry case holds that new industries need temporary shelter until they can compete. National-security arguments say that steel, semiconductors, medicines and food should not depend on rivals. Others stress jobs and communities in regions hit by import surges, the use of tariffs as leverage in negotiations, and the risk of unfair practices such as state subsidies or dumping abroad. Some economists also accept the "optimal tariff" result: a large economy can sometimes improve its terms of trade by taxing imports, though only if partners do not retaliate.

Critics, who include most academic economists, reply that protection raises prices for consumers and for firms that use imported inputs, causes a net loss of economic welfare, invites retaliation against exports, and rewards lobbying and rent seeking rather than efficiency. Protected industries often stay uncompetitive, and jobs saved in one sector can be lost in others. Studies of the 2018–2019 US tariffs by economists at the Federal Reserve Bank of New York, Princeton and elsewhere found that almost all of the cost was passed on to US importers and buyers rather than paid by foreign exporters.

Mercantilism, the dominant doctrine in Europe from the sixteenth to eighteenth centuries, used tariffs and colonial monopolies to build trade surpluses. Alexander Hamilton's 1791 Report on Manufactures and Friedrich List's 1841 work on national political economy made the case for protecting young industries, and the United States and Germany grew behind high tariffs in the nineteenth century. The US Smoot–Hawley Tariff Act of 1930 and the retaliation it provoked are widely blamed for deepening the collapse of trade during the Great Depression.

After 1945 many developing countries, including India, Pakistan and much of Latin America, followed import-substitution strategies with high tariffs and licences, while South Korea and Taiwan combined protection at home with a strong push for exports. Most import-substitution regimes were dismantled in the 1980s and 1990s as part of economic liberalization.

Trade barriers have risen since the late 2010s. The United States imposed tariffs on steel, aluminum and many Chinese goods in 2018–2019, kept most of them under the next administration, and raised tariffs broadly in 2025 under emergency powers and Section 232 of the Trade Expansion Act of 1962. In February 2026 the US Supreme Court held 6–3 that the International Emergency Economic Powers Act does not allow tariffs; Section 232 duties were not affected, and the administration imposed a temporary global tariff under Section 122 of the Trade Act of 1974. Other governments have expanded subsidies for chips, batteries and electric vehicles, and the European Union's carbon border adjustment, linked to carbon pricing, is seen by some trading partners as a disguised barrier. Supporters see these moves as a response to state capitalism and fragile supply chains; critics warn of a slide into rival blocs and slower globalization.

• World Trade Organization: Tariffs
• World Trade Organization: Safeguard measures