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TIE-IN SALE: A type of sale in which consumers can buy one good only if they purchase another good as well. For example, if your grocery store sells you a bag of tea with the condition that you buy a pound of sugar, that would be a tie-in sale. Because they allow a monopoly to increase its profit over what it could make by selling the two goods separately at constant prices, tie-in sales can be used to price discriminate. However, it is important to realize that there are other reasons for tie-in sales other than price discrimination, such as to increase efficiency. For example, when we buy a car, it comes as a package of several goods (tires, engine, etc), which would be very difficult (and inefficient) for consumers to assemble if they were bought separately.
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AVERAGE TOTAL COST Total cost per unit of output, found by dividing total cost by the quantity of output. When compared with price (per unit revenue), average total cost (ATC) indicates the per unit profitability of a profit-maximizing firm. Average total cost is one of three average cost concepts important to short-run production analysis. The other two are average fixed cost and average variable cost. A related concept is marginal cost.
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Fact 5: Our Necessary EvilIt's time to give up our attempts to enter the Merciless Monolithic Media Masters Cable Television Company, Inc. office and take care of other pressing business -- taxes. The next stop on our excursion through the economy is the Shady Valley City Hall, where we need to momentarily, and begrudgingly, pause so that I may pay my semi-annual property tax bill. This is the least enjoyable stop -- at least for me -- on our journey. Grumble. Grumble. Grumble. Of course I hate to pay taxes! But, then again, who doesn't? Taxes are one of those annoying and evil necessities of life that simply can't be avoided. Or can they? Do we have to pay taxes? A quick visit to a bookstore will produce dozens of books telling you how to avoid taxes by investing here or buying this or doing that. Better yet, if we could rid ourselves of the inefficient, bloated, incompetent, do-nothing government, then you and I wouldn't have to pay taxes. Right? We could use our hard-earned income to buy stuff that we want, rather than letting the inefficient, bloated, incompetent, do-nothing government spend it on stuff that we don't want, don't know anything about, and will never need. Right?
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Okun's Law posits that the unemployment rate increases by 1% for every 2% gap between real GDP and full-employment real GDP.
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"A genius is a talented person who does his homework." -- Thomas Edison
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AP
Average Product
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