What are the Kinds of dumping and its definition?

F Dumping ⇔ international price discrimination

» Selling same product at different prices, at home and abroad

F GATT/WTO definition

» Selling in the foreign market at price < price in home market

F US and alternative GATT/WTO definition

» Selling in the foreign market at price < "fair market value"

which is often taken to mean < "normal average cost