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ACCOUNTING PROFIT: The difference between a business's revenue and it's accounting expenses. This is the profit that's listed on a company's balance sheet, appears periodically in the financial sector of the newspaper, and is reported to the Internal Revenue Service for tax purposes. It frequently has little relationship to a company's economic profit because of the difference between accounting expense and the opportunity cost of production. Some accounting expense is not an opportunity cost and some opportunity cost is does not show up as an accounting expenses.

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FOUR-SECTOR INJECTIONS-LEAKAGES MODEL

A variation of the Keynesian injections-leakages model that adds the foreign sector to the three domestic sectors--the household sector, the business sector, and the government sector. This variation adds the foreign to the three domestic sectors (household, business, and government) in the three-sector model and provides an alternative to the four-sector aggregate expenditures (Keynesian cross). It provides the complete Keynesian representation of the macroeconomy, including the export-import interaction between the domestic economy and the foreign sector. Equilibrium is identified as the intersection between the S + T + M line and the I + G + X line. Two related variations are the two-sector injections-leakages model and the three-sector injections-leakages model.

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GRAY SKITTERY
[What's This?]

Today, you are likely to spend a great deal of time surfing the Internet wanting to buy either a pair of red and purple designer socks or a T-shirt commemorating Thor Heyerdahl's Pacific crossing aboard the Kon-Tiki. Be on the lookout for door-to-door salesmen.
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Rosemary, long associated with remembrance, was worn as wreaths by students in ancient Greece during exams.
"Just as iron rusts from disuse, even so does inaction spoil the intellect. "

-- Leonardo da Vinci, architect, artist

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Journal of Economic Theory
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