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ARC ELASTICITY: The average elasticity for discrete changes in two variables, A and B. The distinguishing characteristic of arc elasticity is that percentage changes are calculated based on the average of the initial and ending values of each variable, rather than only initial values. Arc elasticity is generally calculated using the midpoint formula. Arc elasticity should be compared with point elasticity. For infinitesimally small changes in variables A and B, arc elasticity is the same as point elasticity.
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INCREASING RETURNS TO SCALE A given proportional change in all resources in the long run results in a proportional greater change in production. Increasing returns to scale exists if a firm increases ALL resources--labor, capital, and other inputs--by a given proportion (say 10 percent) and output increases by more than this proportion (that is more than 10 percent). This is one of three returns to scale. The other two are decreasing returns to scale and constant returns to scale.
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ORANGE REBELOON
[What's This?]
Today, you are likely to spend a great deal of time calling an endless list of 800 numbers looking to buy either a T-shirt commemorating last Friday (you know why) or a rotisserie oven that can also toast bread. Be on the lookout for pencil sharpeners with an attitude.
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John Maynard Keynes was born the same year Karl Marx died.
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"Believe one who has tried it. " -- Virgil, Roman poet
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ARMA
Autoregressive Moving Average
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