Report on the Subject of Manufactures

The Report on the Subject of Manufactures, generally referred to by its shortened title Report on Manufactures, is the fourth report, and magnum opus, of American founding father and first U.S. Treasury Secretary Alexander Hamilton. It was presented to Congress on December 5, 1791.

It laid forth economic principles rooted in both the Mercantilist system of Elizabeth I's England and the practices of Jean-Baptiste Colbert of France. The principal ideas of the Report would later be incorporated into the "American System" program by Senator Henry Clay of Kentucky and his Whig Party. Abraham Lincoln, who called himself a "Henry Clay tariff Whig" during his early years, would later make the principles cornerstones, together with opposition to the institution and expansion of slavery, of the fledgling Republican Party.

Hamilton's ideas formed the basis for the American School of economics.

Hamilton reasoned that to secure American independence, the United States needed to have a sound policy of encouraging the growth of manufacturing and ensure its future as a permanent feature of the economic system of the nation. He argued these could be achieved through bounties or subsidies to industry, regulation of trade with moderate tariffs (not intended to discourage imports but to raise revenue to support American manufacturing through subsidy), and other government encouragement. These policies would not only promote the growth of manufacturing but provide diversified employment opportunities and promote immigration into the young United States. They would also expand the applications of technology and science for all quarters of the economy, including agriculture.

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