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VARIABLE INPUT: An input whose quantity can be changed in the time period under consideration. This should be immediately compared and contrasted with fixed input. The most common example of a variable input is labor. A variable input provides the extra inputs that a firm needs to expand short-run production. In contrast, a fixed input, like capital, provides the capacity constraint in production. As larger quantities of a variable input, like labor, are added to a fixed input like capital, the variable input becomes less productive. This is, by the way, the law of diminishing marginal returns.
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AVERAGE REVENUE PRODUCT AND MARGINAL REVENUE PRODUCT A mathematical connection between average revenue product and marginal revenue product stating that the change in the average revenue product depends on a comparison between the average revenue product and marginal revenue product. If marginal revenue product is less than average revenue product, then average revenue product declines. If marginal revenue product is greater than average revenue product, then average revenue product rises. If marginal revenue product is equal to average revenue product, then average revenue product does not change.
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time surfing the Internet looking to buy either a birthday gift for your aunt or a pair of leather sandals that won't cause blisters. Be on the lookout for deranged pelicans.
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A thousand years before metal coins were developed, clay tablet "checks" were used as money by the Babylonians.
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"Nothing great has ever been achieved except by those who dared believe that something inside them was superior to circumstances. " -- Bruce Barton, Advertising executive
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KSE
Korea Stock Exchange
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