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LUXURY GOOD: In general, a good (or service) that is not essential but makes like more enjoyable. Luxury goods are often more expensive and primarily purchased by people with more wealth and income. Using more precise, technical language, a luxury good exists if the income elasticity of demand is positive and greater than one. In other words, as people receive more income, they devote an increasingly larger share of income to the purchase of luxury goods.
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FIXED INPUT An input whose quantity cannot be changed in the time period under consideration. The relevant time period is usually termed the short run. The most common example of a fixed input is capital. The alternative to fixed input is variable input. A fixed input, such as capital, provides the "capacity" constraint for the short-run production of a firm. A variable input, such as labor, provides the means of changing short-run production. As larger quantities of a variable input are added to a fixed input, the variable input becomes less productive, which is the law of diminishing marginal returns.
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time watching the shopping channel seeking to buy either a pair of gray heavy duty boot socks or a 50-foot blue garden hose. Be on the lookout for small children selling products door-to-door.
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Cyrus McCormick not only invented the reaper for harvesting grain, he also invented the installment payment for selling his reaper.
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"Old age isn't so bad when you consider the alternative. " -- Cato, Roman orator
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SCF
Survey of Consumer Finances
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