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GOVERNMENT PURCHASES LINE: A graphical depiction of the relation between government purchases and national income (or gross domestic product) that plays a role in Keynesian economics and the Keynesian cross. The slope of this line is positive, greater than zero, less than one, and goes by the name marginal propensity for government purchases. The vertical intercept of this line is autonomous government purchases. The aggregate expenditures line used in the Keynesian cross is obtained by adding this government purchases line, as well as, investment expenditures and net exports, to the consumption line. The government purchases line is also combined with investment expenditures for the Keynesian saving-investment model.
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POINT ELASTICITY The relative responsiveness of a change in one variable (call it B) to an infinitesimally small change in another variable (call it A). The notion of point elasticity typically comes into play when discussing the elasticity at a specific point on a curve.
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PINK FADFLY
[What's This?]
Today, you are likely to spend a great deal of time waiting for visits from door-to-door solicitors trying to buy either a travel case for you toothbrush or a looseleaf notebook binder. 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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Al Capone's business card said he was a used furniture dealer.
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"Success is more a function of consistent common sense than it is of genius. " -- An Wang, industrialist
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JLEO
Journal of Law, Economics and Organization
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