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ASSUMPTIONS, KEYNESIAN ECONOMICS: The macroeconomic study of Keynesian economics relies on three key assumptions--rigid prices, effective demand, and savings-investment determinants. First, rigid or inflexible prices prevent some markets from achieving equilibrium in the short run. Second, effective demand means that consumption expenditures are based on actual income, not full employment or equilibrium income. Lastly, important savings and investment determinants include income, expectations, and other influences beyond the interest rate. These three assumptions imply that the economy can achieve a short-run equilibrium at less than full-employment production.
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RISK The quantitative probability of different future outcomes occurring. The assignment of probabilities can be subjective (based on a "feeling") or objective (based on historical data). Risk is related to the concept of uncertainty, which is simply not knowing what the future holds. People have three alternative preferences when confronting risk -- risk aversion, risk neutrality, and risk loving. Risk aversion is key to the provision of insurance.
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GRAY SKITTERY
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Today, you are likely to spend a great deal of time at the confiscated property police auction seeking to buy either a birthday gift for your grandmother or a T-shirt commemorating yesterday. Be on the lookout for deranged pelicans.
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The penny is the only coin minted by the U.S. government in which the "face" on the head looks to the right. All others face left.
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"The work of the individual still remains the spark that moves mankind forward. " -- Igor Sikorsky, aeronautical engineer
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AEA
American Economic Association
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