Arguments for and against trade protection

📚The economics

Arguments for protection

• Protection of infant (sunrise) industries: a new industry may have high average costs until it grows and gains economies of scale and experience. Temporary protection lets it survive until it can compete. South Korea and Taiwan protected and supported industries that later became world leaders. Risk: the “infant” never grows up, and protection becomes permanent.
• National security: strategic industries (defence, food, energy, semiconductors) should not depend on foreign suppliers who may be cut off in a crisis. Indonesia’s goal of rice self-sufficiency rests partly on food security.
• Health and safety: banning or restricting imports that endanger consumers (contaminated food, unsafe toys, counterfeit medicines).
• Environmental standards: restricting imports produced with damaging methods, or protecting domestic firms that bear the cost of strict environmental rules (the EU’s carbon border adjustment mechanism taxes the carbon in imports such as steel and cement).
• Anti-dumping: dumping is selling exports abroad at a price below the cost of production or below the domestic price, often subsidized, to win market share. Anti-dumping duties protect domestic firms from this unfair competition and are allowed under WTO rules. Many countries have imposed anti-dumping duties on cheap steel.
• Unfair competition: foreign firms may benefit from subsidies, very low wages, weak labour or environmental rules, or undervalued currencies.
• Balance of payments correction: reducing imports can reduce a current account deficit, at least in the short run (4.6).
• Government revenue: tariffs are easy to collect at ports and borders, so they matter for low-income countries with small income-tax bases.
• Protection of jobs: shielding industries from import competition preserves employment, especially where workers would find it hard to move to other jobs (structural unemployment).
• Economically least developed country (ELDC) diversification: protection can help poor countries develop manufacturing and reduce dependence on a few primary exports.

Arguments against protection

• Misallocation of resources: resources are drawn into industries in which the country has no comparative advantage; the welfare-loss triangles (4.2).
• Retaliation: trading partners respond with their own barriers, harming exporters (the 2018 US tariffs led to Chinese tariffs on US soybeans; the 1930s tariff wars deepened the Great Depression).
• Increased costs: firms using imported inputs pay more (steel tariffs raise costs for car and appliance makers), so their competitiveness falls and job losses may exceed jobs saved.
• Higher prices and less choice for consumers; tariffs on food are regressive.
• Domestic firms lack incentive to become more efficient: protected from competition, they have little reason to cut costs or innovate (X-inefficiency).
• Reduced export competitiveness: higher input costs, retaliation, and, if protection keeps the currency stronger, fewer exports.
• Also: costs of administration and lobbying, corruption in quota licences, and harm to poorer exporting countries.

Free trade versus protection: weighing it up

• Static versus dynamic view: free trade maximizes efficiency given today’s comparative advantage; well-designed, temporary protection may help build tomorrow’s advantages.
• Winners and losers: the gains from free trade are spread thinly across consumers; the losses are concentrated on particular workers and regions, which is why protection is politically popular. Compensation and retraining (3.7) address the losers without closing markets.
• Which instrument: subsidies distort less than tariffs and quotas; anti-dumping duties are legitimate but can be abused.
• Country context: small, open economies gain most from trade; strategic concerns grew after the pandemic and geopolitical tensions (“friend-shoring”, supply-chain resilience).