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ENDPOINT FORMULA: A simple technique for calculating the coefficient of elasticity that estimates the elasticity for discrete changes in two variables, A and B. The distinguishing characteristic of this formula is that percentage changes are calculated based on the initial values of each variable. This is much simpler than the midpoint formula, which is based on the percentage change from an average of the initial and ending values. The primary problem with the endpoint formula is that different elasticity values are obtained for price increases than for price decreases of the same segment of the demand curve.

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ECONOMIC COST

An alternative term for opportunity cost, which is the highest valued alternative foregone in the pursuit of an activity. Opportunity cost, or economic cost, is one of the most fundamental concepts used in the study of economics, hence the reason it is also termed economic cost. Economic, or opportunity cost is also commonly termed just cost.

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Today, you are likely to spend a great deal of time looking for a downtown retail store wanting to buy either a T-shirt commemorating the first day of spring or a coffee cup commemorating last Friday (you know why). Be on the lookout for deranged pelicans.
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A half gallon milk jug holds about $50 in pennies.
"Do not wait; the time will never be just right "

-- Napoleon Hill, author

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Latin American Economic System
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