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INJECTION: A non-consumption expenditure on gross domestic product, including investment expenditures, government purchases, and exports. Injections are combined with leakages in the injection-leakage model used to identify equilibrium aggregate output in Keynesian economics. The notion of injection is best viewed through the circular flow, in which investment expenditures, government purchases, and exports are "injected" into the main flow between output, factor payments, national income, and consumption.
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TWO-SECTOR KEYNESIAN MODEL A Keynesian model of the macroeconomy that includes the two private sectors, the household sector and the business sector. This Keynesian model variation, often termed the basic Keynesian model or the private sector Keynesian model, captures the interaction between induced consumption expenditures and autonomous investment expenditures. This model is commonly used to illustrate the basic workings of Keynesian economics, including equilibrium, disequilibrium, and the multiplier. Equilibrium is identified as the intersection between the C + I line and the 45-degree line. Two related variations are the three-sector Keynesian model and the four-sector Keynesian model.
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RED AGGRESSERINE
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Today, you are likely to spend a great deal of time touring the new suburban shopping complex trying to buy either yellow cotton balls or a set of steel-belted radial snow tires. Be on the lookout for cardboard boxes.
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This isn't me! What am I?
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The standard "debt" notation I.O.U. does not mean "I owe you," but actually stands for "I owe unto..."
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"It had long since come to my attention that people of accomplishment rarely sat back and let things happen to them. They went out and happened to things. " -- Elinor Smith, aviator
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Income, Nominal Gross National Product
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