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HERFINDAHL-HIRSHMAN INDEX: A measure of concentration of the production in an industry that's calculated as the sum of the squares of market shares for each firm. This is an alternative method of summarizing the degree to which an industry is oligopolistic and the relative concentration of market power held by the largest firms in the industry. The Herfindahl index gives a better indication of the relative market control of the largest firms than can be found with the four-firm and eight-firm concentration ratios.

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RISK PREMIUM

The difference between a guaranteed or certain income and a risky income that generate the same level of utility. Risk premium is the amount of income that a risk adverse person is willing to pay to avoid the risk. Alternatively, it is the amount of income that a risk loving person is willing to pay to engage in risk. For risk aversion, the risk premium is the amount a person would pay for insurance.

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Today, you are likely to spend a great deal of time strolling through a department store seeking to buy either several magazines on time travel or 500 feet of telephone cable. Be on the lookout for pencil sharpeners with an attitude.
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The first U.S. fire insurance company was established by Benjamin Franklin in 1752 in Philadelphia.
"Just as iron rusts from disuse, even so does inaction spoil the intellect. "

-- Leonardo da Vinci, architect, artist

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