Recessions often bring high tariffs and trade wars, and recent figures from the World Bank show that industry requests for trade barriers are up 30% over the past year. But according to Chad Bown, there is cause for optimism as well. In an op-ed in the Asian edition of the Wall Street Journal, Bown writes that the "global economy may still stay on a pro-trade path." He points to a recent U.S. government decision to deny new trade barriers on imports of aluminum pistons from Argentina and China's use of the World Trade Organization to formally question barriers instead of resorting to retaliatory measures. Bown discusses the WTO's dispute settlement system in his new book Self-Enforcing Trade: Developing Countries and WTO Dispute Settlement.