US economist Milton Friedman said this about jobs going overseas in an interview a few months ago:
Well, they only consider half of the problem. If you move jobs overseas, it creates incomes and dollars overseas. What do they do with that dollar income? Sooner or later it will be used to purchase US goods and that produces jobs in the United States.
In fact, all of the progress that the US has made over the last couple of centuries has come from unemployment. It has come from figuring out how to produce more goods with fewer workers, thereby releasing labor to be more productive in other areas. It has never come about through permanent unemployment, but temporary unemployment, in the process of shifting people from one area to another.
When the United States was formed in 1776, it took 19 people on the farm to produce enough food for 20 people. So most of the people had to spend their time and efforts on growing food. Today, it's down to 1% or 2% to produce that food. Now just consider the vast amount of supposed unemployment that was produced by that. But there wasn't really any unemployment produced. What happened was that people who had formerly been tied up working in agriculture were freed by technological developments and improvements to do something else. That enabled us to have a better standard of living and a more extensive range of products.
The same thing is happening around the world. China has been growing very rapidly in recent years. That's because they shifted from a very inefficient method of agricultural production to something that comes close to the equivalent of private ownership of the land and agriculture. As a result, they've been able to produce a lot more with many fewer workers and that has released workers who have come into the cities and have been able to work in industry and other areas and China has been having a very rapid increase in income.