One may start his or her own business to earn money. This may be in small scale or big scale. When a business is on a small scale, some normally label this as self-employment. Business is said to be the entity that employs from 500 people upwards. This is big people. This is the one that makes people rich.
Starting a business is normally referred to as “entrepreneurship”. This is about being creative and innovative. It is encouraged that every person should start a business.