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INDUSTRY: A collection of firms that produce similar products sold in the same market. The concept of industry is most often used synonymously with market in most microeconomic analysis. That is, the study of perfect competition or oligopoly is not only the study of market structures, but also the study of industrial structure.

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PRINCIPLE OF MINIMUM DIFFERENCES

A principle stating that monopolistically competitive firms seek to maintain similarities between products at the same time they promote differences. Similarities enable substitutability, such that one firm can attract the buyers away from other firms. Differences enable uniqueness and market control, such that each firm has market control and is able to charge a higher price than achieved with perfect competition. This principle is also termed Hotelling's paradox.

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A Brief Introduction To Get You Started

Through undaunted determination, sheer luck, or a missed turnpike exit, you have happened upon A Pedestrian's Guide to the Economy. You'll find hours of reading pleasure contained within this site, with more entertainment value per calorie than most office memos. A Pedestrian's Guide to the Economy, however, is more than a recreational web site. As a handy reference source, it provides answers to many of the most asked, a few of the least asked, and some of the never asked questions about the economy.
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PURPLE SMARPHIN
[What's This?]

Today, you are likely to spend a great deal of time going from convenience store to convenience store hoping to buy either a pair of gray heavy duty boot socks or a 50-foot blue garden hose. Be on the lookout for high interest rates.
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This isn't me! What am I?

In the early 1900s around 300 automobile companies operated in the United States.
"Everyone is bound to bear patiently the results of his own example. "

-- Phaedrus, Philosopher

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