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The Wealth of Nations is in the public domain . This means the original English text (1776 edition) is free to download legally from sites like Project Gutenberg, Library of Congress, and Archive.org.

Smith argues that a nation's wealth is not determined by the size of its gold reserves (as the prevailing Mercantilist theory suggested), but by the and the flow of goods and services . He introduces the concept that individuals pursuing their own self-interest inadvertently promote the social good through an "Invisible Hand."