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TANSTAAFL: A rather cumbersome and usually hard to remember acronym for the expression "There ain't no such thing as a free lunch. This is a favorite saving of many economists because it highlights, albeit in a grammatically questionable manner, the fundamental problem of scarcity. The phrase serves to emphasize that seemingly "free" lunches are not really free. While they might be free to the customer, someone must pay, that is, incur an opportunity cost of foregone production. The lunch eaten by one person cannot be eaten by another.
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KEYNESIAN CROSS A diagram illustrating the basic Keynesian theory of macroeconomics, with aggregate expenditures measured on the vertical axis and aggregate production measured on the horizontal axis, with the relation between aggregate expenditures and aggregate production represented by a positively-sloped aggregate expenditures line. The "cross" aspect of this diagram is the intersection between the aggregate expenditures line and a 45-degree line indicating every point of equality between aggregate expenditures and aggregate production. The "Keynesian" aspect of this diagram is derived from John Maynard Keynes, the developer and namesake of Keynesian economics.
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PINK FADFLY
[What's This?]
Today, you are likely to spend a great deal of time surfing the Internet looking to buy either a T-shirt commemorating the second moon landing or a coffee cup commemorating Thor Heyerdahl's Pacific crossing aboard the Kon-Tiki. Be on the lookout for the happiest person in the room.
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This isn't me! What am I?
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Mark Twain said "I wonder how much it would take to buy soap buble if there was only one in the world."
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"Use, do not abuse; neither abstinence nor excess ever renders man happy." -- Voltaire, philosopher
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PBOT
Phildelphia Board of Trade
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