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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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SHORT-RUN AGGREGATE SUPPLY The total (or aggregate) real production of final goods and services available in the domestic economy at a range of price levels, during a period of time in which some prices, especially wages, are rigid, inflexible, or otherwise in the process of adjusting. Short-run aggregate supply, commonly abbreviated SRAS, is one of two aggregate supply alternatives, distinguished by the degree of price flexibility. The other is long-run aggregate supply. Short-run aggregate supply is combined with aggregate demand in the short-run aggregate market analysis used to analyze business-cycle instability, unemployment, inflation, government stabilization policies, and related macroeconomic topics.
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GRAY SKITTERY
[What's This?]
Today, you are likely to spend a great deal of time searching the newspaper want ads hoping to buy either a pair of red goulashes with shiny buckles or a handcrafted bird feeder. Be on the lookout for neighborhood pets, especially belligerent parrots.
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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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"No task is a long one but the task on which one dare not start: It becomes a nightmare. " -- Charles Baudelaire, poet-critic
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NIPA
National Income and Product Accounts
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