An economy is defined as the way a nation makes choices about using its scarce resources to produce and distribute goods and services. There are three basic economic choices: what to produce, how to produce it, and who receives it. These choices create three types of economic systems - capitalist, socialist, and mixed. A capitalist system relies on private ownership and free markets, while a socialist system involves public or state ownership and central planning. A mixed economy combines elements of both systems, with a role for both private enterprise and government intervention.