With one of Trump’s main goals being to rebuild U.S. manufacturing and bring back jobs for American workers—while keeping the dollar’s status as the world’s reserve currency—I was reminded of a concept that suggests these two goals may actually contradict each other: the Triffin Dilemma. Here’s how it works: Currency Overvaluation: For a currency to serve as a reserve, it must be stable and in high demand internationally. This demand tends to increase the value of the currency relative to...