Explanation:

- Microeconomics

- Focuses on individual units within an economy.

- Studies the behavior of individuals, households, and firms.

- Analyzes how they make decisions and allocate resources.

- Macroeconomics

- Deals with the economy as a whole.

- Examines aggregate phenomena like GDP and inflation.

- Considers national and global scales.

- Income and Employment Theory

- Examines factors influencing national income and employment.

- Includes concepts like wage determination and labor markets.

- Often part of macroeconomic analysis.

- Development Economics

- Studies economic development and growth.

- Focuses on improving living conditions in low-income countries.

- Involves policy-making for economic advancement.