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INCOME-EXPENDITURE MODEL: A macroeconomic model, which captures the essence of Keynesian economics, is based on the equality between total income generated from gross domestic product and total expenditures on gross domestic product. The cornerstone of the income-expenditure model is the consumption function, which relates household consumption expenditures to income and gives rise to the aggregate expenditure line with the addition of investment, government purchases, and net exports. The intersection between the aggregate expenditure line at the 45-degree identifies equilibrium.
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TOTAL REVENUE, PERFECT COMPETITION The revenue received by a perfectly competitive firm for the sale of its output. Total revenue is one two bits of information a perfectly competitive firm needs to calculate economic profit, the other is total cost. In general, total revenue is the price times quantity--the price received for selling a good times the quantity of the good sold at that price. For a perfectly competitive firm, which receives a single unchanging price for all output sold, the calculation is relatively easy. Two other revenue measures directly related to total revenue are average revenue and marginal revenue. Total revenue is often depicted as a total revenue curve.
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BLUE PLACIDOLA
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Today, you are likely to spend a great deal of time visiting every yard sale in a 30-mile radius wanting to buy either an instructional DVD on learning to the play the oboe or a small, foam rubber football. Be on the lookout for neighborhood pets, especially belligerent parrots.
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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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"Nobody can be successful unless he loves his work. " -- David Sarnoff, TV pioneer
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Quantitative Restriction
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