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AGGREGATE MARKET SHOCKS: Disruptions of the equilibrium in the aggregate market (or AS-AD model) caused by shifts of the aggregate demand, short-run aggregate supply, or long-run aggregate supply curves. Shocks of the aggregate market are associated with, and thus used to analyze, assorted macroeconomic phenomena such as business cycles, unemployment, inflation, stabilization policies, and economic growth. The specific analysis of aggregate market shocks identifies changes in the price level (GDP price deflator) and real production (real GDP). However, changes in the price level and real production have direct implications for the unemployment rate, the inflation rate, national income, and a host of other macroeconomic measures.
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ASYMMETRIC INFORMATION Information is not equally available to everyone. Asymmetric information results because efficient information search inevitably stops short of compete information. Some people obtain more benefits from information than others, are willing to incur higher search costs, and thus end up knowing more. Or they incur lower information search costs and have easier access to the information. In a market, sellers tend to have more information about the good than buyers. Asymmetric information gives rise to adverse selection, moral hazard, and the principal-agent problem. These problems can be lessened through signalling and screening.
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John Maynard Keynes was born the same year Karl Marx died.
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"A genius is a talented person who does his homework." -- Thomas Edison
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SIC
Standard Industrial Classification
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