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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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COMMODITY MONEY A medium of exchange (money) that has both value in use and value in exchange. Commodity money is first and foremost a commodity that provides users with satisfaction of their wants and needs. However, it also has the secondary function of acting as a medium of exchange for the economy. In the march toward economic complexity, commodity money emerged from barter exchanges, but then ultimately gave way to modern fiat money.
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A Brief Introduction To Get You StartedThrough undaunted determination, sheer luck, or a missed turnpike exit, you have happened upon A Pedestrian's Guide to the Economy. You'll find hours of reading pleasure contained within this site, with more entertainment value per calorie than most office memos. A Pedestrian's Guide to the Economy, however, is more than a recreational web site. As a handy reference source, it provides answers to many of the most asked, a few of the least asked, and some of the never asked questions about the economy.
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BLUE PLACIDOLA
[What's This?]
Today, you are likely to spend a great deal of time wandering around the downtown area seeking to buy either a how-to book on surfing the Internet or a computer that can play music and burn CDs. Be on the lookout for telephone calls from former employers.
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This isn't me! What am I?
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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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"There is at least one point in the history of any company when you have to change dramatically to rise to the next level of performance. Miss that moment, and you start to decline. " -- Andy Grove, Intel Corp. chairman
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CAP
Common Agricultural Policy
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