1. Private services: This sector includes a wide range of industries, including tourism, retail, healthcare, and financial services. It is the largest employer in Italy, with over 20 million workers.
2. Public administration: This sector includes government departments, public agencies, and public utilities. It employs around 3.5 million people in Italy.
3. Industry: This sector includes manufacturing, construction, and mining. It employs around 3 million people in Italy.