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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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ZERO-BASE BUDGET: A method of budgeting expenditures in which each expenditure is justified on its overall merits rather than being based on the budget for the previous year. A zero-base budget is most often proposed (but seldom implemented) for governments. Governments generally establish budget expenditures based on expenditures for the previous year. If, for example, budget expenditures last year were $100 billion, the requested budget for this year might be set at $110 billion. The existing $100 billion is a "given" and only the extra $10 billion is justified. With a zero-base budget, the entire $110 billion is justified.

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ZERO-BASE BUDGET, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2026. [Accessed: June 7, 2026].


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NONPAYER EXCLUDABILITY

Whether or not nonpayers can be excluded from consuming a good. In other words, can those who do not pay for a good be excluded from consuming the good. Nonpayer excludability is based on the ability to possess and transfer property rights or ownership of a good. For some goods, nonpayers can be easily excluded from consumption because property rights are well-defined and easily controlled. For other goods nonpayers cannot be easily excluded from consumption because property rights are not well-defined and cannot be easily controlled. When combined with consumption rivalry, the result is four alternative types of goods -- private, public, common-property, and near-public.

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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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Lombard Street is London's equivalent of New York's Wall Street.
"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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