Final answer:
Macroeconomics is the branch of economics that examines the economy as a whole and treats it as an aggregate of individual economic units. It focuses on broad economic issues and is complementary to microeconomics.
Step-by-step explanation:
Macroeconomics is the branch of economics that examines the economy as a whole, focusing on broad issues such as the growth of production, unemployment rates, prices, government deficits, and levels of exports and imports. It treats the entire economy as an aggregate of individual economic units, such as households, businesses, and workers. Macroeconomics and microeconomics are complementary perspectives on the overall subject of the economy and are not separate subjects themselves.