Good ideas, sound market research, and hard work are the keys to this risky business. Municipal, state and federal governments employ many people. They purchase huge quantities of goods and services from private companies. They also help to pay for research and development in areas such as the space program. This, in turn, helps businesses to develop new products and services.
Many nations have some level of market economy.
The state interferes very little in the running of the businesses, but also will not help if the businesses fail.