There has been a lot talk recently saying that China is eating the lunch of American manufacturing workers. It has already emerged as a scapegoat in various 2004 presidential campaigns, including Bush's and Liebermans.
This talk is so widespread and so bipartisan you'd never believe it's almost completely bogus. Manufacturing employment is declining because manufacturing productivity is rising much faster than service productivity. Trade is only one of many factors in productivity growth, and not the most important one. And the consequence of productivity growth is not that the economy as a whole is losing jobs, it is that employment shifts from the manufacturing sector to the service sector.
Yes, the American economy is losing jobs, but that's because the Fed can't reduce interest rates below zero and because the Bush tax cuts are designed not to provide stimulus to the economy when it actually needs it.
Paul Krugman explained the economics behind the issue in two old Slate articles.
The accidental theorist explains why productivity growth in one sector reduces employment in that sector
but not in the overall economy,
Vulgar Keynsians explains, among other things, why employment in the economy as a whole is determined by a country's monetary and fiscal policy, not the balance of trade. Both articles are fun to read while teaching a lot of economic theory. I admire Paul Krugman for the way he does that!
But why would politicians do their homework when it's so much easier to find a scapegoat and bash it?