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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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Lesson 2: Economic Science | Unit 4: Science and Practice Page: 13 of 20

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An example of how the scientific method works:
  • You suspect that a relationship exists between course grades and where students are seated in the class.
  • Specifically, you think that students who sit closer to the front of the class receive higher the grades.
Three forms of our hypothesis:
General:
  • Students seated closer to the front receive higher grades.
A More Specific Form:
  • If students sit on the front row, then they receive As-- if they sit on the second row, then they receive Bs-- etc.
Using An Equation:
  • G = a + bD, where b is negative, meaning students seated closer (small D) receive higher grades (large G).
  • Key is that we can compare hypothesis with data.

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MARKET CONTROL

The ability of buyers or sellers to exert influence over the price or quantity of a good, service, or commodity exchanged in a market. Market control largely depends on the number of competitors on each side of the market. If a market has relatively few buyers, but many sellers, then limited competition on the demand-side of the market means buyers tend to have relatively more market control than sellers. The converse occurs if a market has many buyers, but relatively few sellers. This is also termed market power.

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GRAY SKITTERY
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Today, you are likely to spend a great deal of time at a crowded estate auction trying to buy either a handcrafted bird house or a weathervane with a chicken on top. Be on the lookout for crowded shopping malls.
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A U.S. dime has 118 groves around its edge, one fewer than a U.S. quarter.
"If anything terrifies me, I must try to conquer it. "

-- Francis Charles Chichester, yachtsman, aviator

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