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MARGINAL ANALYSIS: A basic technique used in the economics that analyzes small, incremental changes in key variables. The economic obsession with marginal changes exists for at least two reasons. One reason is that many economic decisions made in the real world are made "at the margin." A second reason for using marginal analysis can best be termed analytical sophistication.

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ELASTICITY ALTERNATIVES

Five categories of elasticity that form a continuum indicating the relative responsiveness of a change in one variable (usually quantity demanded or quantity supplied) to a change in another variable (usually price). These five alternatives--perfectly elastic, relatively elastic, unit elastic, relatively inelastic, and perfectly inelastic--are most often used to categorize the price elasticity of demand and the price elasticity of supply.

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Today, you are likely to spend a great deal of time searching for a specialty store hoping to buy either an instructional DVD on learning to the play the oboe or a small, foam rubber football. Be on the lookout for the happiest person in the room.
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Cyrus McCormick not only invented the reaper for harvesting grain, he also invented the installment payment for selling his reaper.
"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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