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ENTRY BARRIER: An institutional, government, technological, or economic restriction on the entry of firms into a market or industry. The four primary barriers to entry are: resource ownership, patents and copyrights, government restrictions, and start-up costs. Barriers to entry are a key reason for market control and the inefficiency that this generates. In particular, monopoly, oligopoly, monopsony, and oligopsony often owe their market control to assorted barriers to entry. By way of contrast, perfect competition, monopolistic competition, and monopsonistic competition have few if any barriers to entry and thus little or no market control.
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MARGINAL RETURNS The change in the quantity of total product resulting from a unit change in a variable input, holding all other inputs fixed. Marginal returns is an older and more generic term for marginal product. While marginal product has largely replaced marginal returns in most discussions of short-run production, the phrase does persist in a few terms like the law of diminishing marginal returns.
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BLUE PLACIDOLA
[What's This?]
Today, you are likely to spend a great deal of time at a flea market looking to buy either a flower arrangement with a lot of roses for your grandmother or a wall poster commemorating the first day of winter. Be on the lookout for gnomes hiding in cypress trees.
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This isn't me! What am I?
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Sixty percent of big-firm executives said the cover letter is as important or more important than the resume itself when you're looking for a new job
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"You need just the right amount of ambition . . . If you have too little ambition, you don't push or work hard. If you have too much ambition, you put yourself ahead of others, elbow them out of your way. " -- Andy Grove, Intel chairman and co-founder
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USM
Unlisted Securities Market
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