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THREE-SECTOR INJECTIONS-LEAKAGES MODEL: A model used to identify equilibrium in Keynesian economics based on injections (investment and government purchases) and leakages (saving and taxes) for the three domestic sectors (household, business, and government). Equilibrium is achieved at the intersection of the saving and tax line, S + T, and the investment and government purchases line, I + G.

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SECOND-DEGREE PRICE DISCRIMINATION

A form of price discrimination in which a seller charges different prices for different quantities of a good. This also goes by the name block pricing. Second-degree price discrimination is possible because decidedly different quantities are purchased by different types of buyers with different demand elasticities. This is one of three price discrimination degrees. The others are first-degree price discrimination and third-degree price discrimination.

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Today, you are likely to spend a great deal of time driving to a factory outlet wanting to buy either a lazy Susan for you dining room table or a set of serrated steak knives, with durable plastic handles. Be on the lookout for small children selling products door-to-door.
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Rosemary, long associated with remembrance, was worn as wreaths by students in ancient Greece during exams.
"I not only use all the brains that I have, but all that I can borrow. "

-- Woodrow Wilson, 28th US president

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Marginal Propensity to Invest
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