The scope of the subject of macroeconomics entails various theories of income, output, employment, growth, inflation and so on.

Macroeconomics has widely been known as the income and employment theory as it majorly focuses on the determination of income as well as employment levels in the economy. It studies and interprets data to make substantial inferences regarding these levels and to work on the betterment of these levels that speak for the overall growth and development of the economy.