Industries < Web >

: Instead of a physical product, this industry sells skills or time. This includes your doctor, the transport company that ships your packages, and the retail store where you shop.

Today, economists categorize industries into four main stages, showing how a single product—like a smartphone—moves through the economy: industries

The story of industry is the story of how humans learned to make "more" from "less." It began with hands and tools and evolved into a global web of machines, data, and services. The Spark: The Industrial Revolution : Instead of a physical product, this industry