On the eve of accession to the World Trade Organization (WTO), with the aid of
border policies, China was the second largest corn exporter in the world. During the time
prior to accession, China's corn prices were estimated to be more than 30 percent above
world market prices (Huang, Rozelle and Chang, 2003). China's government explicitly
admitted to providing subsidies for corn exports of up to $US35 per metric, which
accounted for almost all of the protection that corn producers in China were receiving.