Final answer:
Anti-dumping measures best describe the practice of preventing selling below cost in foreign markets, by imposing tariffs to block imports sold under the cost of production.
Step-by-step explanation:
The best description of anti-dumping measures is preventing selling below cost in foreign markets. Anti-dumping laws are set up to block imports that are sold below the cost of production by imposing tariffs. These tariffs are designed to increase the price of these imports to better reflect their actual cost of production and to prevent international producers from engaging in the practice known as dumping to gain an unfair market advantage. Dumping is considered a form of international price discrimination where a company exports a product at a price lower than it normally charges in its home market, often to drive out competition in the target market.
Under World Trade Organization (WTO) rules, dumping is not permitted, and countries that suspect they are adversely affected by dumped goods can file a complaint with the WTO. Anti-dumping measures are often countercyclical, with an increase in cases during economic recessions and a decrease during booms. As an example, the U.S. government has many anti-dumping orders active from past investigations, covering a variety of products from several countries.