There are four types of entrepreneurship: 1. Small business entrepreneurship which makes up the majority of businesses and employs half of non-government workers. These entrepreneurs focus on profitability and feeding their families rather than rapid growth. 2. Scalable startup entrepreneurship which aims to change the world through rapid growth and attracting venture capital. These make up a small percentage of businesses but attract most risk capital. 3. Large company entrepreneurship where established companies pursue disruptive innovation through acquisitions or internal development to respond to market changes, though culture makes this difficult. 4. Social entrepreneurship which solves social problems through products and services, with the goal of improving society rather than profit or market share.