The study of economics is separated into two main fields. Macroeconomics is the study of national economies and a “big picture” view of gross domestic product (GDP) and the policies that support large-scale investment in development, international trade, overall resource management and production, and policies impacting the stock and bond markets. Microeconomics focuses on theories of supply and demand and the methods by which individual businesses set prices for consumers. In modern times, the definition of microeconomics has expanded to include a compilation of international investment policies meant to combat poverty through loans and grants in support of individual businesses in impoverished countries and regions. It is an interventionist policy of investment at the local level.

Microeconomics can be described as a social investment in ...

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