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ABSTRACTION METHODS: Abstraction is the process of simplifying the complexities of the real world by ignoring (hopefully) unimportant details, especially (for our purposes) while doing economic analysis. Three common methods of actual, real world abstraction used in economic theories are words, graphs, and equations. Words can be misunderstood. Graphs are a little more precise. And equations tend to be the most precise of the three.

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FACTOR MARKET, EFFICIENCY

A factor market achieves efficiency in the allocation of resources by equating marginal revenue product to factor price. Perfect competition, as the efficiency benchmark, is the only market structure to satisfy this criterion and achieve factor market efficiency. Monopsony, oligopsony, and monopsonistic competition are inefficient because they equate marginal revenue product to marginal factor cost, both of which are greater than factor price.

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BROWN PRAGMATOX
[What's This?]

Today, you are likely to spend a great deal of time strolling through a department store hoping to buy either decorative celebrity figurines or a flower arrangement with anything but tulips for your grandfather. Be on the lookout for infected paper cuts.
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The 22.6% decline in stock prices on October 19, 1987 was larger than the infamous 12.8% decline on October 29, 1929.
"Plans are only good intentions unless they immediately degenerate into hard work."

-- Peter Drucker, management consultant

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