"Open markets offer the only realistic hope of pulling billions of people in developing countries out of abject poverty, while sustaining prosperity in the industrialized world."1
—Kofi Annan, former United Nations Secretary-General
Many people mark the birth of economics as the publication of Adam Smith's The Wealth of Nations in 1776. Actually, this classic's full title is An Inquiry into the Nature and Causes of the Wealth of Nations, and Smith does indeed attempt to explain why some nations achieve wealth and others fail to do so. Yet, in the 241 years since the book's publication, the gap between rich countries and poor countries has grown even larger. Economists are still refining their answer to the original question: Why are some countries rich and others poor, and what can be done about it?