"The purpose of studying economics is not to acquire a set of of ready-made answers to economic questions, but to avoid being deceived by economists."-- Joan Robinson, Cambridge University
On page one of The Wealth of Nations, Adam Smith illustrates the central principle of his economics with an example taken from, in his words, a "very trifling manufacture": the making of pins. Smith goes to some effort to describe the process. "One man draws out the wire," he writes, "another… more