Psychology is the study of the mind, its process and how humans think the way they think. Democracy regards with people, the opinion or the voice of the people in governments. In a democracy, people elect their officials. Judicious regards with the judges, the Supreme Court or the state courts. Anthropology is the study of humans, their evolution through history in different conditions, eras, and locations. And the economy is ruled by laws. In the free market, by the law of supply and demand.
