『The Wealth of Nations』要約

Book Overview The Wealth of Nations, published in 1776, is the foundational text of classical economics and a comprehensive inquiry into the nature and causes of the wealth of nations. Adam Smith, a Scottish moral philosopher, systematically dismantles the prevailing mercantilist system of his time—which held that national wealth was measured by the hoarding of gold and silver and maintained through protectionist trade barriers. Smith replaces this with a coherent framework that defines national wealth as the total annual produce of land and labor, or the real goods and services available to a nation’s citizens. The central claim is that economic growth is driven not by government decree but by the productive capacity of labor, which is multiplied through the division of labor, capital accumulation, and the free exchange of goods in competitive markets. The book is structured across five books. The first covers the division of labor and the origin of money and prices. The second examines the nature of capital stock—fixed and circulating—and its role in employing productive labor. The third offers a history of economic progress in Europe, charting the decline of feudalism and the rise of towns. The fourth attacks mercantilism and the physiocratic system, laying out the case for what later became known as laissez-faire. The fifth addresses public finance: the proper functions of government, the principles of taxation, and the management of public debt. Throughout, Smith’s method is empirical and historical, drawing on concrete examples from pin factories, corn markets, colonial trade, and contemporary debates over interest rates and land rents. The book’s influence is so profound that its core concepts—the invisible hand, the division of labor, and the distinction between productive and unproductive labor—remain essential vocabulary for anyone discussing economics or public policy today. At its heart, The Wealth of Nations is not merely a defense of free markets; it is a theory of human cooperation and moral progress. Smith argues that the universal human propensity to “truck, barter, and exchange” allows self-interested individuals to unintentionally benefit others. The baker, the brewer, and.