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AGGREGATE EXPENDITURES: The total expenditures on gross domestic product undertaken in a given time period by the four sectors -- household, business, government, and foreign. Expenditures made by each of these sectors are specifically labeled consumption expenditures, investment expenditures, government purchases, and net exports. Aggregate expenditures (AE) are a cornerstone in the study of macroeconomics, playing critical roles in Keynesian economics, aggregate market analysis, and to a lesser degree, monetarism.
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SAVING-INVESTMENT MODEL A variation of the Keynesian injections-leakages model that includes the two private sectors, the household sector and the business sector. This variation, more formally termed the two-sector injections-leakages model, captures the interaction between induced saving (and indirectly induced consumption expenditures) and autonomous investment expenditures. This model provides an alternative to the two-sector aggregate expenditures (Keynesian cross) analysis of the macroeconomy, including equilibrium, disequilibrium, and the multiplier. Equilibrium is identified as the intersection between the saving line and the investment line. Two related variations are the three-sector injections-leakages model and the four-sector injections-leakages model.
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BLUE PLACIDOLA
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Today, you are likely to spend a great deal of time waiting for visits from door-to-door solicitors wanting to buy either a coffee cup commemorating yesterday or a replacement remote control for your television. Be on the lookout for malfunctioning pocket calculators.
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In the Middle Ages, pepper was used for bartering, and it was often more valuable and stable in value than gold.
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"Never let the fear of striking out get in your way. " -- Babe Ruth, baseball player
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Quantitative Restriction
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