An anti-dumping investigation is the procedural mechanism by which a state determines whether to impose anti-dumping duties on imports alleged to be "dumped" — that is, sold in the importing market at a price below their "normal value" (typically the price charged in the exporter's home market, or a constructed cost-plus benchmark).
The legal foundation sits in Article VI of the GATT 1994 and the WTO Agreement on Implementation of Article VI (commonly called the Anti-Dumping Agreement, or ADA). Under the ADA, an investigation typically proceeds in three analytical steps:
- Dumping determination: comparing export price with normal value to calculate a dumping margin.
- Injury determination: assessing whether the domestic industry suffers material injury, threat of injury, or material retardation of establishment.
- Causation: linking the dumped imports to that injury, excluding other factors.
Investigations are usually launched after a petition by the domestic industry, though authorities may self-initiate. The ADA requires that petitioners represent producers accounting for at least 25% of domestic production and more than 50% of those expressing a view. Investigations must normally conclude within 12 months and not exceed 18.
National investigating authorities include the U.S. Department of Commerce and U.S. International Trade Commission, the European Commission's DG Trade, India's Directorate General of Trade Remedies (DGTR), and China's Ministry of Commerce (MOFCOM). Provisional duties can be applied after a preliminary affirmative finding; definitive duties typically last five years, subject to sunset review.
Anti-dumping is the most frequently used trade remedy globally. Critics argue it functions as disguised protectionism, particularly where "non-market economy" methodologies inflate margins. Disputes over methodology — notably the EU's and U.S.'s treatment of China after the 2016 expiry of paragraph 15(a)(ii) of China's WTO Accession Protocol — have generated extensive WTO litigation.
Example
In 2024, the European Commission opened an anti-dumping investigation into imports of battery electric vehicles from China, following a self-initiated complaint focused on alleged subsidization and below-cost pricing.
Frequently asked questions
Dumping is defined relative to the exporter's home-market price or cost of production, not the importing market's prices. Low prices alone are not dumping unless they fall below this 'normal value' benchmark.
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