Protectionism
What is Protectionism?
Protectionism is government policy that shields domestic industries from foreign competition using tariffs, quotas, and subsidies.
It can protect specific jobs and infant industries but raises prices, invites retaliation, and reduces the overall gains from trade. Economists generally favor free trade, which maximizes total welfare.
Protectionism: a worked example
Take a hypothetical bicycle market with a world price of $100. At that price domestic consumers buy 100,000 bikes while domestic firms supply 40,000, so imports fill the gap of 60,000. A $20 tariff lifts the domestic price to $120. Quantity demanded falls to 90,000 and domestic supply rises to 55,000, so imports shrink to 35,000. Government collects $20 × 35,000 = $700,000. Consumers lose surplus equal to the average of 100,000 and 90,000 multiplied by $20, which is $1,900,000. Domestic producers gain the average of 40,000 and 55,000 multiplied by $20, which is $950,000. Deadweight loss = $1,900,000 - $950,000 - $700,000 = $250,000. The two triangles confirm it: 0.5 × 15,000 × $20 = $150,000 of bikes made at home that could have been imported more cheaply, plus 0.5 × 10,000 × $20 = $100,000 of purchases priced out entirely.
The mistake students make with protectionism
The tempting move is to add the producer gain to the tariff revenue and call protection a net win for the country. Both amounts are real, but neither is new wealth. Every dollar of both comes out of consumer surplus, so they are transfers between groups inside the same economy. Only the two triangles are genuine losses: the extra resources burned producing at home what could have been bought cheaper abroad, and the value lost by buyers who leave the market at the higher price. Label transfers and deadweight areas separately on a free-response answer.
Protectionism questions
Why do economists oppose protectionism if it saves jobs?
Tariffs and quotas do preserve jobs in the shielded industry, and that gain is concentrated in one place where anyone can count it. The costs are spread thin and land on people who never hear the policy's name. Every buyer pays more, firms that use the protected good as an input lose ground to foreign rivals still buying it at the world price, and trading partners retaliate against exporters in unrelated industries. Economists also count the jobs that never appear in those other sectors, which is what turns the arithmetic negative.
What is the infant industry argument for protectionism?
The infant industry argument holds that a young domestic industry cannot yet match established foreign rivals that already enjoy scale and experience, so temporary protection buys time for its costs to fall. The theoretical case is legitimate. The practical problem is that protection rarely ends, because the firms benefiting from it lobby to keep it and never face the competitive pressure that would force costs down, so a temporary tariff becomes permanent and the promised efficiency never arrives.
What is the difference between a tariff and a quota?
A tariff is a tax charged per unit of an imported good, so it raises the domestic price and the government collects revenue on every unit that still enters. A quota is a hard cap on the quantity allowed in, which raises the domestic price by making the good scarce, except the extra money goes to whoever holds the import license rather than to the treasury. Both shrink imports, raise domestic prices, and create deadweight loss.
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