Did Chinese imports hollow out American factory towns?

Yes in some places, but economists disagree on how much, and on what the lesson is. The "China shock" is the impact of rising Chinese exports on manufacturing employment in the United States and Europe after China joined the World Trade Organization in 2001. Most studies find that it reduced US manufacturing employment, but they do not agree on the size: estimates range from 550,000 jobs, about 16% of the total decline in US manufacturing employment between 2000 and 2007, through 1.8–2.0 million, to 2.0–2.4 million.

The local picture is what made it famous. US regions with industries that competed with Chinese industries saw higher unemployment, lower labor force participation and reduced wages in their local labor markets. Meanwhile, nationally, the economists David Autor, David Dorn and Gordon Hanson stated that employment fell in the industries more exposed to import competition, but that offsetting gains in other industries had yet to materialize.

Other researchers push back. One general equilibrium model estimated that only around 15 percent of manufacturing job losses between 2000 and 2007 were attributable to the shock, with compensating gains elsewhere. Others point out that cheaper imports lowered consumer prices, which benefited especially low- and middle-income households, and that in a 2021 reassessment Autor, Dorn and Hanson found that once gains from lower prices were included only about 6.3 percent of the US population experienced net losses.

No single study settles it. One 2023 review of the research concluded that US–China trade caused aggregate welfare gains in both countries, had winners and losers in the US, and was not a leading cause of manufacturing employment decline. Many economists note that the real harm was in the rapid economic changes for communities and workers.