Macroeconomic policies target the overall economy

Steps:

• Define macroeconomics as the study of economy-wide phenomena like aggregate output, inflation, and unemployment.
• Identify policies that influence broad economic variables, such as fiscal or monetary tools affecting national GDP.
• Evaluate options against this definition to find the one describing economy-wide scope.
• Select the option matching aggregate behavior and institutions.

Why B is correct:

• Macroeconomics, by definition, examines and influences economy-wide institutions (e.g., central banks) and aggregate behavior (e.g., total consumption), distinguishing it from microeconomic focus on individuals or firms.

Why the others are wrong:

• A: Focuses on individual welfare, which aligns with microeconomics, not macro.
• C: Monopoly control is a microeconomic issue concerning specific markets, not the whole economy.
• D: Buffer stock schemes manage specific commodity prices, a microeconomic tool, not broad macroeconomic policy.

Final answer: B