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July 1, 2025 

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INDUCED: The general notion that changes in one variable are related to, or caused by, changes in another variable. Induced relations, especially changes in consumption expenditures are induced by changes in disposable income, are a key aspect of Keynesian economics and the multiplier effect. The alternative to an induced relation between variables is an autonomous relation, in which one variable is not related to another.

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PIGOUVIAN TAX: A tax on an external cost, such as pollution, designed to use market forces to achieve an efficient allocation of resources. A. C. Pigou, one of the first economists to study the market failure of externalities, is credited with developing this tax system for internalizing costs external to the market. An external cost caused by pollution, for example, can be internalized if polluters pay a tax equal to the value of the external cost.

     See also | tax | externality | pollution | market failure | efficiency | market | demand curve | supply curve | materials balance | recycling | regulation | Coase theorem | command and control | pollution rights market |


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PERFECT COMPETITION, REALISM

Perfect competition is an idealized market structure that does NOT exist in the real world. While some real world industries might come relatively close to one or two of the four key characteristics of perfect competition, none matches all four sufficiently that they can be declared PERFECTLY competitively. Some industries come close on the large number of small firms and the identical product characteristics. A few industries have relatively good, although not perfect, information about prices and technology. However, almost all industries fall far short of the perfect mobility characteristics.

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BROWN PRAGMATOX
[What's This?]

Today, you are likely to spend a great deal of time lost in your local discount super center trying to buy either clothing for your kitty cats or a set of luggage without wheels. Be on the lookout for infected paper cuts.
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The wealthy industrialist, Andrew Carnegie, was once removed from a London tram because he lacked the money needed for the fare.
"Experience keeps a dear school, but fools will learn in no other. "

-- Benjamin Franklin

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