The air conditioning theory

I have a new theory on how globalization affects the United States. You can think of the world as a giant house in summer where the owner can only afford to air condition one room. The rest of the house is hot, humid, and full of mold except for the one room that has an air conditioner. The room with the air conditioner is the developed world. The United States, Canada, western Europe, Australia are relatively comfortable and (until recently) prosperous.
If you open the doors of that room you have the world economy under globalization. The outer reaches of the house get a slight increase in comfort. Most noticeable, however is the one room that had air conditioning. It's conditions deteriorate rapidly.