Microeconomics

Microeconomics is the branch of economics that focuses on actions of particular actors within the economy, like households, workers, and business firms.

Definitions

According to Principles of Economics by Timothy Taylor (3rd edition),

Microeconomics. Branch of economics that focuses on actions of particular actors within the economy, like households, workers, and business firms.

According to Macroeconomics by Mankiw (7th edition),

Microeconomics. The study of individual markets and decisionmakers. (Cf. Macroeconomics.)