The “Buy America” provision in the (haven’t seen much of the $787 billion yet) package is causing more and more trouble to U.S. firms that would like to participate, but have “hidden” imports in their products.

Simple logic reveals this to be a bad idea – no geographic entity is so well endowed that it can be self sufficient and be a low cost producer at the same time. Economic growth and wealth depend on specialization – doing what one does best. But specialization requires trade. Specializing as a barber means that you have to trade with others to get your food, cars and TVs. Money, of course, makes trade work a lot better (thus the willingness of the world to use dollars rather than “barter”). I would hate to have to give lectures to the barber to pay for my haircut.