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MACROECONOMIC SECTORS: The four aggregate sectors of the macroeconomy--household, business, government, and foreign--that reflect four key macroeconomic functions and are responsible for four expenditures on gross domestic product. These four sectors are the primary "actors" on the macroeconomic stage. Macroeconomic theories then explain macroeconomic phenomena by exploring the interaction among these four sectors.

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THREE-SECTOR KEYNESIAN MODEL

A Keynesian model of the macroeconomy that includes the three domestic sectors, the household sector, the business sector, and the government sector. This Keynesian model variation adds the government sector (or public sector) to the household and business sectors that make up the two-sector model. This model enables an analysis of government stabilization policies, especially how fiscal policy changes in government purchases and taxes can be used to close recessionary gaps and inflationary gaps. Equilibrium is identified as the intersection between the C + I + G line and the 45-degree line. Two related models are the two-sector Keynesian model and the four-sector Keynesian model.

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APLS

BROWN PRAGMATOX
[What's This?]

Today, you are likely to spend a great deal of time driving to a factory outlet trying to buy either a combination CD player, clock radio, and telephone (with answering machine) or a revolving spice rack. Be on the lookout for the last item on a shelf.
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This isn't me! What am I?

John Maynard Keynes was born the same year Karl Marx died.
"Whenever you see a successful business, someone once made a courageous decision."

-- Peter F. Drucker, business strategist

SPO
Strongly Pareto Optimal
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