In economics, services are activities people pay for that do not result in a physical product: banking, insurance, retail, transport, health care, education, tourism and so on. The difference between goods and services is explained on the Goods & Services page.
Services make up the largest share of output in developed economies, far ahead of manufacturing. Trade in services across borders is counted as invisible trade, and slow productivity growth in some services is explained by Baumol's cost disease.