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RATIONAL BEHAVIOR: The notion that people make decisions based on the desire to obtain the greatest amount of satisfaction. Rational behavior essential means that people prefer more to less. The presumption of rational behavior underlies most economic analyses, especially those applied to consumer demand theory.

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MARGINAL COST

The change in total cost (or total variable cost) resulting from a change in the quantity of output produced by a firm in the short run. Marginal cost (MC) indicates how much total cost changes for a given change in the quantity of output. Because changes in total cost are matched by changes in total variable cost in the short run (total fixed cost is fixed), marginal cost is the change in either total cost or total variable cost. It is found by dividing the change in total cost (or total variable cost) by the change in output. Marginal cost is one of four cost concepts used in short-run production analysis. The other three are average total cost, average fixed cost, and average variable cost.

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Today, you are likely to spend a great deal of time lost in your local discount super center looking to buy either a weathervane with a chicken on top or a flower arrangement with daisies and carnations for your uncle. Be on the lookout for attractive cable television service repair people.
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The average bank teller loses about $250 every year.
"My philosophy of life is that if we make up our mind what we are going to make of our lives, then work hard toward that goal, we never lose - somehow we win out."

-- President Ronald Reagan

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