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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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RATIONAL ABSTENTION

The decision NOT to do something (such as vote in an election) because the cost of taking the action is more than the expected benefit. The rational decision to refrain from an endeavor is a straightforward application of utility maximization and along with the related notion of rational ignorance, is a source of voter apathy and government inefficiency.

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BLACK DISMALAPOD
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Today, you are likely to spend a great deal of time searching for a specialty store wanting to buy either a lazy Susan for you dining room table or a set of serrated steak knives, with durable plastic handles. Be on the lookout for empty parking spaces that appear to be near the entrance to a store.
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It's estimated that the U.S. economy has about $20 million of counterfeit currency in circulation, less than 0.001 perecent of the total legal currency.
"To understand a man, you must know his memories. The same is true of a nation."

-- Anthony Quayle, Actor

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