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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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L

A broad monetary measure that combines M3 plus several liquid assets, including commercial paper, U.S. Treasury bills, savings bonds, and bankers' acceptances. L used to be tracked and reported by the Federal Reserve System along with M1, M2, and M3. However, L is no longer reported.

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Today, you are likely to spend a great deal of time flipping through the yellow pages looking to buy either a rechargeable flashlight or storage boxes for your computer software CDs. Be on the lookout for infected paper cuts.
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Lombard Street is London's equivalent of New York's Wall Street.
"Success is the ability to go from one failure to another with no loss of enthusiasm."

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National Association of Securities Dealers
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