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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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LONG-RUN PRODUCTION ANALYSIS

An analysis of the production decision made by a firm in the long run. The central characteristic of long-run production analysis is that all inputs under the control of the firm are variable. The central principle guiding production in the long run is returns to scale, which indicates how production responds to proportional changes in all inputs. A contrasting analysis is short-run production analysis.

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Today, you are likely to spend a great deal of time driving to a factory outlet seeking to buy either a New York Yankees baseball cap or a solid oak entertainment center. Be on the lookout for letters from the Internal Revenue Service.
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The New York Stock Exchange was established by a group of investors in New York City in 1817 under a buttonwood tree at the end of a little road named Wall Street.
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