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AD VALOREM TARIFF: A tax on imports that is specified as a percentage of the value of the good or service being taxed. This is one form of trade barrier that's intended to restrict imports into a country. Unlike nontariff barriers and quotas, which increase prices and thus revenue received by domestic producers, an 'ad valorem tariff' generates revenue for the government. For example: a 15 percent ad valorem tariff on a TV set worth $100 would pay a tariff of $15. One advantage of an ad valorem tariff is that it keeps up with changes in prices (mostly inflation).

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LAW OF DIMINISHING MARGINAL RETURNS

A principle of short-run production stating that as a firm combines more of a variable input with a fixed input, the marginal product of the variable input eventually declines. This is THE economic principle underlying the analysis of short-run production for a firm. It offers an explanation for the law of supply and the positive slope of the market supply curve.

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Today, you are likely to spend a great deal of time at a garage sale seeking to buy either a hepa filter for your furnace or a wall poster commemorating next Thursday. Be on the lookout for letters from the Internal Revenue Service.
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In the late 1800s and early 1900s, almost 2 million children were employed as factory workers.
"The ultimate measure of a man is not where he stands in moments of comfort and convenience, but where he stands at times of challenge and controversy."

-- Martin Luther King, Jr.

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