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January 30, 2026 

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HERFINDAHL INDEX: A measure of concentration of the production in an industry that's calculated as the sum of the squares of market shares for each firm. This is an alternative method of summarizing the degree to which an industry is oligopolistic and the relative concentration of market power held by the largest firms in the industry. The Herfindahl index gives a better indication of the relative market control of the largest firms than can be found with the four-firm and eight-firm concentration ratios.

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PURPLE SMARPHIN
Your compete MICRO*scope for today

You are the type of person who is usually the brightest person in the room, even when seated in a football stadium filled to capacity. Family and friends treat you as a walking encyclopedia, which is okay with you. Today, you are likely to spend a great deal of time flipping through the yellow pages looking to buy either a dozen high trajectory optic orange golf balls or a large red and white striped beach towel. Be on the lookout for door-to-door salesmen. You should consider shopping at stores or businesses beginning with the letter F, but do not buy any products with a serial number or product code containing the number 559811. 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?
VAULT CASH

Paper bills and metal coins kept in bank vaults or elsewhere in banks (such as teller drawers). Vault cash is used, quite literally, to "cash" checks and otherwise to satisfy currency withdrawal demands of the depositors. Because vault cash is in the possession of banks and not the nonbank public, it is not considered as "money in circulation" and is not part of the official M1 money supply. Vault cash is one of two types of bank assets that are considered reserves and used to satisfy reserve requirements. The other is Federal Reserve deposits.

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Fact 5: Our Necessary Evil

It's time to give up our attempts to enter the Merciless Monolithic Media Masters Cable Television Company, Inc. office and take care of other pressing business -- taxes. The next stop on our excursion through the economy is the Shady Valley City Hall, where we need to momentarily, and begrudgingly, pause so that I may pay my semi-annual property tax bill. This is the least enjoyable stop -- at least for me -- on our journey. Grumble. Grumble. Grumble.

Of course I hate to pay taxes! But, then again, who doesn't? Taxes are one of those annoying and evil necessities of life that simply can't be avoided.

Or can they? Do we have to pay taxes? A quick visit to a bookstore will produce dozens of books telling you how to avoid taxes by investing here or buying this or doing that. Better yet, if we could rid ourselves of the inefficient, bloated, incompetent, do-nothing government, then you and I wouldn't have to pay taxes. Right? We could use our hard-earned income to buy stuff that we want, rather than letting the inefficient, bloated, incompetent, do-nothing government spend it on stuff that we don't want, don't know anything about, and will never need. Right?
Tell me more...

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APLS

Lewis Carroll, the author of Alice in Wonderland, was the pseudonym of Charles Dodgson, an accomplished mathematician and economist.
"A genius is a talented person who does his homework."

-- Thomas Edison

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