Answer:
B. economic principles affecting entire countries.
Explanation:
Macroeconomics is the part of economic studies that studies the economy of a country as a whole. In this branch of economics, the aggregate income, growth, expenditure and inflation are considered. The performance of the entire economy is measured under macroeconomics. National income, Gross domestic product, inflation and unemployment fall under the macroeconomic studies.
Answer:
economic principles affecting entire countries
Explanation:
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