I think your should read THE WEALTH OF THE NATIONS by ADAM SMITH.>>>>>>>>>>>
The theories which support free trade are all based on the concept that there is essentially full employment. Ricardo's theory is irrelevant in today's world as practically nothing trades on the basis of comparative advantage. If a country does not have an absolute advantage in producing a product it will not be able to sell the product on the world market.
....and a nation's economy dependent on DEBT, Walmart, McDonald's , Sam's Club is unsustainable.
For how long we will keep consuming and will keep sending our manufacturing overseas.
Where goes the manufacturing, there goes the RESEARCH & DEVELOPMENT.
It is a race towards the bottom.
An example is Maytag leaving USA where the average employee made $15 to Mexico where the average is $.50 cents an hour. That .50 employee isn't going to be able to afford that dishwasher he's making. The $15 employee could afford the dishwasher, a home, car, etc... so how long before these companies put themselves out of business because of outsourcing?
I know this is an over-simplified example, but hopefully you get the gest of my question?