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RATE OF RETURN: The ratio of the additional annual income or profit generated by an investment to the cost of the investment. Here's a simple example, although the calculations are usually a great deal more involved for actual investments. If the cost of constructing a new factory is $10 million and it gives you an extra $1 million in profit each year, then its rate of return is 10 percent.

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ABSTRACTION

Simplifying the complexities of the real world by ignoring (hopefully) unimportant details while doing economic analysis. Abstraction is an essential feature of the scientific method. Hypothesis verification, model construction, and comparative static analysis are not possible without abstraction.

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Today, you are likely to spend a great deal of time surfing the Internet hoping to buy either a cell phone case or a pair of designer sunglasses. Be on the lookout for empty parking spaces that appear to be near the entrance to a store.
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The word "fiscal" is derived from a Latin word meaning "moneybag."
"Kites rise highest against the wind, not with it. "

-- Winston Churchill, British prime minister

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