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VARIABLE INPUT: An input whose quantity can be changed in the time period under consideration. This should be immediately compared and contrasted with fixed input. The most common example of a variable input is labor. A variable input provides the extra inputs that a firm needs to expand short-run production. In contrast, a fixed input, like capital, provides the capacity constraint in production. As larger quantities of a variable input, like labor, are added to a fixed input like capital, the variable input becomes less productive. This is, by the way, the law of diminishing marginal returns.
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SCREENING When confronted by asymmetric information, the use of small bits of information, or indicators, that suggest more comprehensive information. Screening occurs when those with limited information try to identify indicators suggesting more complete information. It is used in markets with adverse selection and moral hazard, especially in labor markets and in the provision of insurance. Common methods of screening include aptitude tests, affiliations, past behavior, and personal characteristics. A related method is signalling.
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WHITE GULLIBON
[What's This?]
Today, you are likely to spend a great deal of time watching the shopping channel wanting to buy either a stretchable, flexible watch band or high-gloss photo paper that works with your printer. Be on the lookout for pencil sharpeners with an attitude.
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This isn't me! What am I?
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A communal society, a prime component of Karl Marx's communist philosophy, was advocated by the Greek philosophy Plato.
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"I have no expectation of making a hit every time I come to bat. What I seek is the highest possible batting average." -- President Franklin Delano Roosevelt
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SLLN
Strong Law of Large Numbers
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