An industry is a specific group of companies or organizations that share similar primary business activities, products, or services. In economics, industries serve as the core building blocks of financial systems, transforming raw inputs like labor, capital, and technology into valuable outputs. The Four Main Sectors of Industry
Economists typically categorize all industrial activity into four distinct tiers based on the Clark-Fisher model of economic development: Bureau of Labor Statistics (.gov)
Industries in Alphabetical Order : U.S. Bureau of Labor Statistics
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