Import tariffs are on the rise in the United States, with a long list of new tariffs imposed in the last few months—25 percent on steel imports, 10 percent on aluminum, and 25 percent on $50 billion of goods from China—and possibly more to come on China and the auto industry. One of the objectives of these new tariffs is to reduce the U.S. trade deficit, which stood at $568.4 billion in 2017 (2.9 percent of GDP). The fact that the United States imports far more than it exports is viewed b...