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Number of establishments by sector in the United States economy in 1997, 2002, and 2007. Value of sales, shipments, receipts, revenue, or business done by sector in the United States economy in 1997, 2002, and 2007. Annual payroll by sector in the United States economy in 1997, 2002, and 2007.
Manufacturing is a vital economic sector in the United States of America. [1] The United States is the world's second-largest manufacturer after the People's Republic of China with a record high real output in 2021 of $2.5 trillion. [2] As of December 2016, the U.S. manufacturing industry employed 12.35 million people.
The economic history of the United States spans the colonial era through the 21st century. The initial settlements depended on agriculture and hunting/trapping, later adding international trade, manufacturing, and finally, services, to the point where agriculture represented less than 2% of GDP .
At the top level, they are often classified according to the three-sector theory into sectors: primary (extraction and agriculture), secondary (manufacturing), and tertiary (services). Some authors add quaternary (knowledge) or even quinary (culture and research) sectors. Over time, the fraction of a society's activities within each sector changes.
Some technologies that advanced the Industrial Revolution in the U.S. were appropriated from British designs by ambitious British entrepreneurs hoping to use the technology to create successful companies in the U.S. [3] [4] [5] Much of the Industrial Revolution in the U.S. originated in the Lehigh Valley region of eastern Pennsylvania, where ...
These include defense contractors, civilian contractors, nonprofit organizations, trade unions, industry trade groups, and professional associations, many of which have their headquarters in the Washington area so they can be close to the federal government. As of February 2022, the largest U.S. government agencies located in the Washington ...
Employees are mixed and composed of various Economic sectors such as the Business sector, Private sector, Public sector, and the Voluntary sector. Additional classifications include the Agricultural (or primary) sector, Industrial (or secondary) sector, Service (or tertiary) sector, Information (or quaternary) sector, and Human (or quinary) sector.
In the 18th century, innovations like steamboats, railroads, and guns increased demand for wrought iron and steel. The Mount Savage Iron Works in Maryland was the largest in the United States in the late 1840s, and the first in the nation to produce heavy rails for the construction of railroads. [56]