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April 12, 2026 

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MARGINAL REVENUE, MONOPOLY: The change in total revenue received by a monopoly resulting from a change in the quantity of output sold. For a monopoly firm, marginal revenue is less than the price.

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PURPLE SMARPHIN
Your compete MICRO*scope for today

You are the type of person who inevitably succeeds at just about everything you attempt to do, except staying organized. Family and friends are prone to remind you of the current decade whenever they take note of your clothing ensemble. Today, you are likely to spend a great deal of time flipping through the yellow pages trying to buy either a cell phone case or a pair of designer sunglasses. Be on the lookout for mail order catalogs with hidden messages. You should consider shopping at stores or businesses beginning with the letter K, but do not buy any products with a serial number or product code containing the number 212763. Your preferred shopping venue is the Internet. Your special symbol is the exclamation point (!).


Is this You?

As a Purple Smarphin, you are the brightest and most intelligent person you know. And that goes for shopping, too. You know exactly what you want. You know exactly what it costs. You know exactly when and where to buy. But, of course, shopping is only one of the many activities that attracts your intellectual attention. You shop when you need to and buy if have to, but shopping is not the end all of your life.


This isn't me! What am I?
MARGINAL PRODUCTIVITY THEORY

A theory used to analyze the profit-maximizing quantity of inputs (that is, the services of factor of productions) purchased by a firm in the production of output. Marginal-productivity theory indicates that the demand for a factor of production is based on the marginal product of the factor. In particular, a firm is generally willing to pay a higher price for an input that is more productive and contributes more to output. The demand for an input is thus best termed a derived demand.

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Some Prime Stuff On INTEREST RATES

One unexpected benefit from our foot-paced view of the economy is loose change. Keeping our eyes to the ground has uncovered a nickel here, a quarter there, and an occasional dollar bill. My total is up to $137.65, an amount that I'm reluctant to keep on my person. Fortunately Interstate OmniBank has a branch very close the Dr. Nova Cain's dental office. I can deposit my booty into a safe, secure savings account under the watchful eyes of Interstate OmniBank employees, to be withdrawn if needed at a later date. Not only will Interstate OmniBank keep my $137.65 safe and secure, they'll also pay me an interest. That's I deal I just can't pass up.
Tell me more...

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APLS

The Dow Jones family of stock market price indexes began with a simple average of 11 stock prices in 1884.
"It is the mark of an educated mind to be able to entertain a thought without accepting it."

-- Aristotle

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