The US Can’t Manufacture Its Way to a Thriving Middle Class

The economic-policy consensus that prevails in the US is right about one thing. Over the course of recent decades, industrial dislocation, sluggish incomes and diminished opportunities have left many Americans stranded. More surprising is that Republicans and Democrats, despite their mutual loathing, mostly agree about how to put this right. That’s too bad, because the consensus they’ve reached is wrong.

The crux of the problem, according to both sides, was reckless trade liberalization that led to the collapse of US manufacturing. Thanks to surging imports, many good, high-wage factory jobs disappeared, and nothing came along to take their place. The worst-affected regions of the economy fell into steep decline. What’s the remedy for a sickness caused by too much trade? Use tariffs and subsidies to protect the factory jobs that remain and, better still, to create new ones. If market forces and foreign competition were the problem, trade and industrial policies are the solution.

In a splendid new book, Behind the Curve, Robert Lawrence of Harvard and the Peterson Institute for International Economics counts the many errors in this way of thinking.

For a start, trade liberalization wasn’t the main killer of factory jobs. As economies develop and grow more prosperous, changes in the structure of employment follow a similar pattern almost everywhere. Farm jobs give way to factory jobs, then factory jobs give way to service jobs. In the first phase, agricultural productivity rises, fewer farm workers are needed, food prices fall and higher real incomes shift demand toward manufactures. Then the same thing happens in manufacturing: Productivity rises, factory jobs go away, goods prices fall and higher real incomes shift demand toward services.

In country after country, over the course of many decades, the share of factory jobs in total employment first rises then falls, tracing an inverted U (hence “behind the curve”). A declining share of manufacturing employment is a feature of rising prosperity, not a bug. Politicians who want to get workers back into factories could perhaps be asked why they don’t aim higher and strive to get workers back on the land.

To be sure, international trade can hasten these transitions – another way of saying that trade is pro-growth. But it isn’t the principal driver. In the US, the share of manufacturing jobs in total non-farm employment fell from more than 30% in 1950 to less than 15% by the late 1990s. Note, that was before China’s accession to the WTO in 2001. Following China’s full entry into the global trading system, US manufacturing imports surged – the notorious “China Shock.” The share of manufacturing employment fell to 9% by 2010 and then appeared to level off. For a while, at least, the rate of decline did accelerate. Even so, in aggregate terms, the trade shock was in line with the long-established downward trajectory of factory jobs.

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