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July 12, 2025 

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MARGINAL ANALYSIS: A basic technique used in the economics that analyzes small, incremental changes in key variables. The economic obsession with marginal changes exists for at least two reasons. One reason is that many economic decisions made in the real world are made "at the margin." A second reason for using marginal analysis can best be termed analytical sophistication.

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PERFECT COMPETITION AND EFFICIENCY: Perfect competition is the idealized market structure that achieves an efficient allocation of resources. The conditions of perfect competition, including (1) large number of small firms, (2) identical products sold by all firms, (3) freedom of entry into and exit out of the industry, and (4) perfect knowledge of prices and technology, ensure that perfect competition efficiently allocates resources. This is in fact the purpose of perfect competition: a market structure that illustrates perfection, the best of all possible resource allocation worlds. The real world falls short of this perfection.

     See also | perfect competition | efficiency | market structure | resource allocation | imperfect competition | monopoly | oligopoly | monopolistic competition |


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UNLIMITED WANTS AND NEEDS

A basic condition of human existence which means that people are never totally satisfied with the quantity and variety of goods and services the consume. It means that people never get enough, that there's always something else that they would want or need. Unlimited wants and needs are one half of the fundamental problem of scarcity that has plagued humanity since the beginning of time. The other half of the scarcity problem is limited resources.

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GRAY SKITTERY
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Today, you are likely to spend a great deal of time at a flea market wanting to buy either decorative picture frames or storage boxes for your income tax returns. Be on the lookout for deranged pelicans.
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One of the largest markets for gold in the United States is the manufacturing of class rings.
"What gets measured gets done."

-- Peter Drucker, educator

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Liquid Petroleum Gas
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