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MARGINAL REVENUE, PERFECT COMPETITION: The change in total revenue resulting from a change in the quantity of output sold. Marginal revenue indicates how much extra revenue a perfectly competitive firm receives for selling an extra unit of output. It is found by dividing the change in total revenue by the change in the quantity of output. Marginal revenue is the slope of the total revenue curve and is one of two revenue concepts derived from total revenue. The other is average revenue. To maximize profit, a perfectly competitive firm equates marginal revenue and marginal cost.
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BROWN PRAGMATOX
Your compete MICRO*scope for today
You are the type of person who works best when the work is most challenging. Family and friends have given up asking you out for lunch because you never pick up the check. Today, you are likely to spend a great deal of time strolling around a discount warehouse buying club hoping to buy either a half-dozen helium filled balloons or a packet of address labels large enough for addresses of both the sender and the recipient. Be on the lookout for rusty deck screws. You should consider shopping at stores or businesses beginning with the letter X, but do not buy any products with a serial number or product code containing the number 323705. Your preferred shopping venue is thrift stores. Your special symbol is the comma (,).
Is this You?
As a Brown Pragmatox, you are down-to-earth and practical. You are hard working and industrious. You are frugal to the point that you might even refrain from making a purchase that you really, really need. Doing so often causes problems down the road. You definitely go with function over form and substance over style.
This isn't me! What am I?
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LONG-RUN AVERAGE COST CURVE, DERIVATION The long-run average cost curve is the envelope of an infinite number of short-run average total cost curves, with each short-run average total cost curve tangent to, or just touching, the long-run average cost curve at a single point corresponding to a single output quantity. The key to the derivation of the long-run average cost curve is that each short-run average total cost curve is constructed based on a given amount of the fixed input, usually capital. As such, when the quantity of the fixed input changes, the short-run average total cost curve shifts to a new location.
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Keeping The Lid On INFLATIONIt's Thursday! It's 2:30 in the afternoon! IT'S PRETZEL TIME!! We must make a brief stop at one of Shady Valley's most acclaimed business establishments -- Max Mulroney's Pretzel Haven. My favorite, of course, is pretzel-on-a-stick. An ample supply of barbecue sauce is standard fair. I'm taken aback! Max has raised his pretzel prices once again -- for the third Thursday in a row. What sort of chicanery is at work here? Is Max trying to gouge the pretzel lovers of Shady Valley? Max says, quite emphatically, NO! His pretzel producing cost has risen. It seems, he explains, to be a pervasive problem throughout Shady Valley. He's not alone in pumping up prices. A quick price checking, window shopping expedition through the Shady Valley Central Town Sprawling Hills Shopping Mall, Mega-Mart Discount Warehouse Super Center, Manny Mustard's House of Sandwiches, and even Dr. Nova Cain's dental office reveals truth to Max's claim. Prices all over Shady Valley are rising. I suspect that there's only one way to unravel the intricacies of this mystery, we're need to examine the topic of inflation.
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Al Capone's business card said he was a used furniture dealer.
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"If you don't have time to do it right, when will you have time to do it over?" -- John Wooden, Basketball coach
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ARCH Autoregressive Conditional Heteroskedasticity
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