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A: The common notation for the "intercept" term of an equation specified as Y = a + bX. Mathematically, the a-intercept term indicates the value of the Y variable when the value of the X variable is equal to zero. Theoretically, the a-intercept is frequently used to indicate exogenous or independent influences on the Y variable, that is, influences that are independent of the X variable. For example, if Y represents consumption and X represents national income, a measures autonomous consumption expenditures.
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MONOPOLISTIC COMPETITION, LONG-RUN ADJUSTMENT A monopolistically competitive industry undertakes a two-part adjustment to equilibrium in the long run. One is the adjustment of each monopolistically competitive firm to the appropriate factory size that maximizes long-run profit. The other is the entry of firms into the industry or exit of firms out of the industry, to eliminate economic profit or economic loss. The end result of this long-run adjustment is two equilibrium conditions--one for profit maximization, the other for zero economic profit.
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Charging Up Your CREDIT CARDS (aka Plastic Money)Here's the scene: You've made your monthly stop (for the second time this week) at the Mega-Mart Discount Warehouse Super Center for a few essentials -- cashews, soap, licorice, garden hose, peanut clusters, color television, and a large inner tube for whitewater rafting. Do you pay with a check or whip out your Interstate OmniBank Platinum Diamond Express credit card? Credit card? Good choice. You don't actually have to PAY for the stuff that you're buying -- at least not right away. Your bank account is safe.
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PINK FADFLY
[What's This?]
Today, you are likely to spend a great deal of time lost in your local discount super center wanting to buy either galvanized steel storage shelves or a large green chalkboard shaped like the state of Maine. Be on the lookout for fairy dust that tastes like salt.
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This isn't me! What am I?
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The 1909 Lincoln penny was the first U.S. coin with the likeness of a U.S. President.
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"Far and away the best prize that life has to offer is the chance to work hard at work worth doing." -- Theodore Roosevelt, 26th US president
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NSF
National Science Foundation
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