The definition of economics is the study of how goods and services are produced, distributed, and consumed. In short, economics is the study of supply and demand. It is the theory of how markets work and wealth is distributed including how scarce resources are allocated. Economics is not just how the stock market is doing. Rather, economics refers to how people, businesses and countries choose to spend their money. Learn microeconomics, macroeconomics, managerial economics, sustainable economics and more to advance your career.