Study of the behavior of the whole (aggregate) economies or economic systems instead of the behavior of individuals, individual firms, or markets (which is the domain of Microeconomics). Macroeconomics is concerned primarily with the forecasting of national income, through the analysis of major economic factors that show predictable patterns and trends, and of their influence on one another. These factors include level of employment/unemployment, gross national product (GNP), balance of payments position, and prices (deflation or inflation). Macroeconomics also covers role of fiscal and monetary policies, economic growth, and determination of consumption and investment levels.
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