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MARGINAL REVENUE, MONOPOLISTIC COMPETITION: The change in total revenue received by a monopolistically competitive firm resulting from a change in the quantity of output sold. For a monopolistically competitive firm, marginal revenue is less than the price.

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PRODUCT LIFE CYCLE

The different stages that a product traverses over the course of its life from initial availability (birth) to eventual unavailability (death). The key stages are development, introduction, growth, maturity, saturation, and decline. The product life cycle, represented by an S-shaped curve, is an adaptation of the biological life cycle and is common to the study of marketing. It is also important in the analysis of innovation and economic instability. In addition to biological growth, comparable S-shaped life cycles are found in short-run production of a firm, the growth of a person's income, the acquisition of knowledge, and the development of a civilization.

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BEIGE MUNDORTLE
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Today, you are likely to spend a great deal of time strolling through a department store hoping to buy either a solid oak entertainment center or a remote controlled ceiling fan. Be on the lookout for rusty deck screws.
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Ragnar Frisch and Jan Tinbergen were the 1st Nobel Prize winners in Economics in 1969.
"Stand up to your obstacles and do something about them. You will find that they haven't half the strength you think they have."

-- Norman Vincent Peale

TIFFE
Tokyo International Financial Futures Exchange (Japan)
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