Did anyone even ask for Trump’s bonkers economic policies?

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Open this photo in gallery: U.S. President Donald Trump holds a Foreign Trade Barriers document as he delivers remarks on tariffs in the Rose Garden at the White House in Washington, on April 2.Carlos Barria/Reuters Kevin Yin is a contributing columnist for The Globe and Mail and an economics doctoral student at the University of California, Berkeley. When I think about the macroeconomic leadership in the United States, a joke that Jonah Hill said on the Roast of James Franco comes to mind. Among Hollywood actors, Mr. Hill says, the philosophy on making movies is generally “one for them and...