THE WEALTH OF NATIONS: Officially titled An Inquiry into the Nature and Causes of the Wealth of Nations, this book written by Adam Smith and published in 1776, is considered to be the foundation for the modern study of economics. The Wealth of Nations was the first to combine assorted economic discourse and analyses into a single book. One of its most important themes is the efficiency of free trade and market exchanges unrestricted by government that leads to macroeconomic full employment and microeconomic efficiency. See also | Adam Smith | classical economics | flexible prices | Say's law | saving-investment equality | full employment | Keynesian economics | macroeconomics | efficiency | entrepreneurship | laissez faire |