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DEMAND ELASTICITY AND TOTAL EXPENDITURE: The notion that price-induced changes in total expenditure for a good (price times quantity) depends on the relative price elasticity of demand. In particular, for relatively elastic demand (1 < E < ∞) changes in price cause total expenditure to change in the opposite direction. An increase in price causes total expenditure to fall and a decrease in price causes total expenditure to rise. For relatively inelastic demand (0 < E < 1) changes in price cause total expenditure to change in the same direction. An increase in price causes total expenditure to rise and a decrease in price causes total expenditure to fall. For unit elastic demand (E =1) price changes do not cause any change in total expenditure. Total expenditure is the same whether price increases or decreases.
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INDUSTRY A group of firms producing goods or services that are close substitutes-in-consumption. The similarity of the products makes it possible to analyze the production in a market framework. An industry can be broadly defined, such as the manufacturing industry, or narrowly specified, such as the root beer industry. For most economic analysis the term industry is used interchangeably with the term market.
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The Business About INVESTMENTI had fun that last time we wandered into Shady Valley's very own Happy-Time Gala-World Fun-Land Amusement Park, didn't you? Let's stroll through it again, just to see what adventures we might find. Okay, I admit to an ulterior motive. The Happy-Time Gala-World Fun-Land Amusement Park recently added a new ride -- the Cap'n Space Fright Whirl. If you thought the Monster Loop Death Plunge roller coaster was exciting, then you're in for a real treat with this one. My interest in the Cap'n Space Fright Whirl, however, is NOT from the standpoint of risking a recently eaten meal. On the contrary, I'm going to don my pointy-headed economist disguise and check out this mass of twisted metal and high-flying cages as a prime example of capital. In the process we might be able to gain some insight into the whys and wherefors of the thing we call investment.
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BROWN PRAGMATOX
[What's This?]
Today, you are likely to spend a great deal of time lost in your local discount super center trying to buy either clothing for your kitty cats or a set of luggage without wheels. Be on the lookout for infected paper cuts.
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This isn't me! What am I?
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Al Capone's business card said he was a used furniture dealer.
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"Experience keeps a dear school, but fools will learn in no other. " -- Benjamin Franklin
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ARIMA
Autoregressive Integrated Moving Average
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