A great deal of ink has been spilled about the causes and consequences of the recent rise in economic nationalism. Maybe it's time to step back and ask whether economic nationalism is even possible in the modern world. The Economist has an interesting article discussing the British struggle to negotiate a Brexit agreement with the EU: Dominic Cummings, the former campaign director of Vote Leave, thinks that Brexit is being “irretrievably botched”. Ambrose Evans-Pritchard, a pro-Leave journalist, says that “the...