Both Bernie Sanders and Donald Trump are blaming free-trade deals for the decline of working-class jobs and incomes. Are they right?
Trade isn’t the only culprit. Technological change has also played a part.
When I visit one of America’s remaining factories, I rarely see assembly-line workers. I don’t see many workers at all. Instead, I find a handful of technicians sitting behind computer screens. They’re linked to fleets of robots and computerized machine tools who do the physical work.