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LONG-RUN AVERAGE COST CURVE: A curve depicting the per unit cost of producing a good or service in the long run when all inputs are variable. The long-run average cost curve (usually abbreviated LRAC) can be derived in two ways. On is to plot long-run average cost, which is, long-run total cost divided by the quantity of output produced. at different output levels. The more common method, however, is as an envelope of an infinite number of short-run average total cost curves. Such an envelope is base on identifying the point on each short-run average total cost curve that provides the lowest possible average cost for each quantity of output. The long-run average cost curve is U-shaped, reflecting economies of scale (or increasing returns to scale) when negatively-sloped and diseconomies of scale (or decreasing returns to scale) when positively sloped. The minimum point (or range) on the LRAC curve is the minimum efficient scale.
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VOLUNTARY EXCHANGE The process of willingly trading one valuable commodity (good, service, or resource) for another. The key term is "willingly," which distinguishes voluntary exchanges from involuntary exchanges, such as those created by government taxes. Voluntary exchanges are the foundation of market transactions.
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Stealing A Few Moments For CRIMELike most consumers, workers, and taxpayers, I engage in market exchanges for a lot of stuff -- food, labor, shelter, entertainment, confectionery products. But as I wandered through the peaceful community of Shady Valley, U. S. of A., I entered a "market" that I would have rather avoided. That's right, as the title indicates, I exchange some crime. I was mugged -- relieved of several valuable possessions -- right in front of the Shady Valley police station. I did the selling and my mugger did the "buying." While my part in the exchange was involuntary, the mugger's part was quite voluntary. In fact, the perpetrator of this crime acted much like any consumer headed to Natural Ned's Nursery and Garden Center in search of a creeping juniper. Let's see why?
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time driving to a factory outlet looking to buy either a key chain with a built-in flashlight and panic button or a green and yellow striped sweater vest. Be on the lookout for the last item on a shelf.
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Potato chips were invented in 1853 by a irritated chef repeatedly seeking to appease the hard to please Cornelius Vanderbilt who demanded french fried potatoes that were thinner and crisper than normal.
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"Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover." -- Mark Twain
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BLS
Bureau of Labor Statistics
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