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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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YELLOW CHIPPEROON
[What's This?]
Today, you are likely to spend a great deal of time flipping through mail order catalogs hoping to buy either a pair of leather sandals that won't cause blisters or clothing for your kitty cats. Be on the lookout for door-to-door salesmen.
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This isn't me! What am I?
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Al Capone's business card said he was a used furniture dealer.
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"Be willing to have it so. Acceptance of what has happened is the first step to overcoming the consequences of any misfortune." -- William James, Psychologist
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AR(N)
A nth-order Autoregressive Process
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