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WELFARE ECONOMICS: A branch of economics that studies efficiency and the overall well-being of society based on alternative allocations of scarce resources. Welfare economics extends the microeconomic analysis of indifference curves to society as a whole. It is concerned with broad efficiency questions and criteria (Pareto efficiency and Kaldor-Hicks efficiency) as well as more specific efficiency issues (market failures, externalities, public goods).
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SLOPE, AGGREGATE EXPENDITURES LINE The positive slope of the aggregate expenditures line is the sum of the marginal propensity to consume (MPC), marginal propensity to invest (MPI), and marginal propensity for government purchases (MPG), less the marginal propensity to import (MPM). This slope is greater than zero but less than one, reflecting induced expenditures by the four macroeconomic sectors (household, business, government, and foreign). The slope of the aggregate expenditures line determines the magnitude of the multiplier process.
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A Somewhat Defective Look At PRODUCT SAFETYWAIT! STOP! My shoe's untied! And my blasted shoestring is tangled! Fortunately I have my handy OmniStraight shoestring straightener, a product developed by a team of former NASA scientists that's designed to straighten and untangle even the most convoluted shoestrings. OOPS! You might want to continue your pedestrian journey without me. It seems as though my handy OmniStraight shoestring straightener has inadvertently dissected my shoestring, mangled the upper half of my jogging shoe, and introduced several gashes to the top of my foot. As I faint face-first onto the sidewalk from the loss of blood, you can consider some of the ins and outs of my predicament.
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PINK FADFLY
[What's This?]
Today, you are likely to spend a great deal of time browsing about a thrift store seeking to buy either a replacement remote control for your stereo system or a computer that can play video games and burn DVDs. Be on the lookout for fairy dust that tastes like salt.
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This isn't me! What am I?
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Approximately three-fourths of the U.S. paper currency in circular contains traces of cocaine.
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"The past cannot be changed. The future is yet in your power. " -- Hugh White, U.S. Senator
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MPI
Marginal Propensity to Invest
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