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S&P 500: The abbreviation for the Standard & Poor's 500, an index of the prices of 500 corporate stocks traded on the New York Stock Exchange. It includes an assortment of stocks for industrial, transportation, and utility companies. It also includes a larger number of stocks than the comparable Dow Jones composite index, which means it's often considered a better measure of the overall performance of the stock market. Less commonly publicized are separate Standard & Poor's indexes for industrial, transportation, utility, and financial stocks.

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PERFECT COMPETITION, LONG-RUN ADJUSTMENT

A perfectly competitive industry undertakes a two-part adjustment to equilibrium in the long run. One is the adjustment of each perfectly competitive firm to the appropriate factory size that maximizes long-run profit. The other is the entry of firms into the industry or exit of firms out of the industry, to eliminate economic profit or economic loss. The end result of this long-run adjustment is a multi-faceted equilibrium condition that price is equal to marginal cost and average cost (both short run and long run).

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APLS

GRAY SKITTERY
[What's This?]

Today, you are likely to spend a great deal of time calling an endless list of 800 numbers hoping to buy either a T-shirt commemorating next Thursday or a birthday gift for your uncle. Be on the lookout for slow moving vehicles with darkened windows.
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In the early 1900s around 300 automobile companies operated in the United States.
"No man, for any considerable time, can wear one face to himself and another to the multitude without finally getting bewildered as to which may be true."

-- Nathanial Hawthorne, Author

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Games and Economic Behavior
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