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OLIGOPOLY, CONCENTRATION: Oligopoly is a market structure that contains a small number of relatively large firms, meaning oligopoly markets tend to be concentrated. A small number of large firms account for a majority of total output. Concentration unto itself is not necessarily bad, but it often leads to inefficient behavior, such as collusion and nonprice competition. Concentration is measured in three ways--market share, concentration ratio, Herfindahl index.

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INNOVATION

The initial application of new products, technologies, and ideas that usually generate a beneficial improvement in society and the economy. In contrast to an invention, which is the act of creation, an innovation is the implementation of a product, technology, or idea. Innovations are changes in existing institutions and the status quo, prompted by risk-taking entrepreneurs, that promote prosperity and improved living standards.

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Today, you are likely to spend a great deal of time lost in your local discount super center seeking to buy either a square lamp shade with frills along the bottom or an electric coffee pot with automatic shutoff. Be on the lookout for rusty deck screws.
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A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court!
"Nothing ever built arose to touch the skies unless some man dreamed that it should, some man believed that it could, and some man willed that it must. "

-- Charles Kettering, inventor

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