Dumping (Trade)

Dumping, in international trade, is the practice of exporting a product at a price lower than its "normal value", which is usually the price the same product sells for in the exporter's home market, or, where that is not usable, its cost of production plus a reasonable profit. It is a form of international price discrimination. When dumped imports hurt producers in the importing country, its government may impose anti-dumping duties to offset the price gap.

Dumping is a trade-law concept as much as an economic one. It is defined by Article VI of the General Agreement on Tariffs and Trade and the World Trade Organization's Anti-Dumping Agreement. It should not be confused with foreign subsidies, which are tackled with countervailing duties, or with "social dumping", a loose political term for competition based on low wages or weak labor rules.

Imagine a bakery that sells loaves for a fair price in its own neighborhood, then drives across town each evening and sells the leftovers for half that price outside a rival bakery. Its home customers keep paying full price, while the rival suddenly cannot compete. Shoppers across town enjoy cheap bread, but the local baker may be forced to close.

Dumping works the same way between countries. A producer sells abroad for less than it charges at home or less than the goods cost to make. Buyers in the importing country benefit from low prices, while competing local firms lose sales, which is why governments allow a targeted response.

Investigators compare normal value with the export price, adjusted to the same point in the supply chain. The dumping margin is usually expressed as a percentage of the export price:

• $NV$ is normal value, normally the domestic selling price in the exporting country.
• $EP$ is the export price charged to buyers in the importing country.

If a steel product sells for $600 a tonne at home and is exported for $480, the margin is $(600 - 480) \div 480 \times 100 = 25\%$. An anti-dumping duty of up to 25% could then be imposed on that exporter. When home prices are unreliable, investigators may use a "constructed" value from costs and profit, or prices in a third country. For exporters from economies treated as non-market, some importers use surrogate costs from another country, a practice China has challenged at the WTO.

• Price discrimination. A firm with market power at home, perhaps behind tariffs that keep imports out, can charge more there and less in competitive foreign markets, reflecting different price elasticity of demand.
• Excess capacity. In a downturn, selling surplus output abroad above variable cost but below full cost still covers part of fixed costs.
• Sporadic clearance. Firms occasionally offload unsold stock.
• Predatory pricing. A firm may price low to drive foreign rivals out and later raise prices, seeking a monopoly. Economists generally regard true predatory dumping as rare.
• State support. Subsidies, cheap credit or state ownership can allow sustained low export prices.

WTO rules allow anti-dumping duties only after an investigation shows three things: dumping is occurring, the domestic industry has suffered or is threatened with material injury, and the dumped imports caused it. Duties may not exceed the dumping margin and normally expire after five years unless a review finds that removing them would lead to renewed dumping and injury. Exporters can sometimes avoid duties by agreeing to raise prices, known as price undertakings.

In the United States, the Department of Commerce calculates margins and the US International Trade Commission decides on injury. In the European Union the European Commission runs investigations, and India's Directorate General of Trade Remedies and Pakistan's National Tariff Commission handle cases in those countries. India has been among the most frequent users of anti-dumping measures since the WTO was created, and steel, chemicals and plastics account for a large share of cases worldwide.

Critics argue that anti-dumping is protectionism in legal form. Pricing below cost in a slump is normal business behavior that domestic firms are allowed to practise at home, and duties raise costs for downstream users and consumers. The methods for constructing normal value can inflate margins, and the threat of investigation alone can deter imports. Supporters counter that anti-dumping is a safety valve that makes deeper free trade commitments politically possible, and that it protects industries against state-backed overcapacity that distorts competition. Both arguments feature in disputes over Chinese steel, solar panels and electric vehicles, and in the wider debate on globalization.

• World Trade Organization: Anti-dumping
• European Commission: Anti-dumping measures