IS THERE AN ECONOMIC MODEL IN A TEXTBOOK SOMEWHERE FOR AN ENTIRE NATION'S LABOR FORCE BEING AS DUMB AND GETTING AS FULLY TAKEN ADVANTAGE OF AS RENT-A-CENTER CUSTOMERS?:
Wealthy Americans reap the benefits of globalization for the same reason wealthy Americans reap an outsize proportion of the benefits of the economy as a whole: American labor's complete complacency about its need to bargain powerfully in the free marketplace.
I don't know if there is any equation or model in the text books to fit -- for a close parallel -- uninformed customers being taken to the cleaners in a Rent-A-Center store. Rent-A-Center suckers are a tiny bit of our economy -- taken-to-the-cleaners (as in completely deunionized) labor is the going standard.
Again, I don't believe there is a text book model that spells out the cause and effect of what is truly America's "great wage depression". Imagine if we predicted to Americans of 1968 that by 2008 25% of our workforce would be earning less than LBJs $10/hr minimum wage.
If American workers were getting their share across the board, then globalization of manufactured goods might merely be the equivalent of automation to them.