Possibly the best place to go for a thorough analysis and well documented discussion of "supply-side economics" is to Australian Economist John Quiggin's book, "Zombie Economics." Though it is written for economists and has been assigned reading in graduate economics study, it is so well written that it is accessible to the lay person with a basic knowledge of economics. Quiggin has a delightful sense of humor, which makes the book all the more enjoyable. I can hardly recommend this book too highly. Other 20th Century economic fads are covered too, and there is a nice discourse contrasting the "fresh water" and "saltwater" economists.