Lec18slides - Aggregate Output Amount produced = Aggregate output = Y Amount that people want to buy = Planned aggregate expenditures = AE

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4 Aggregate Output Amount produced = Aggregate output = Y Amount that people want to buy = Planned aggregate expenditures = AE Equilibrium: AE = Y 7 Today, assume: No government. No imports or exports. Prices and interest rates are fixed.
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10 Who buys goods? Consumers: Consumption C. Firms: Planned Investment I. AE = C + I 12 Consumption C 1. Aggregate output Y is aggregate income to consumers. 2. Higher Y Higher consumption.
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13 Relation between C and Y: C Y C 14 Planned Investment Assume firms want to invest fixed amount I.
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15 Relation of AE to Y : AE Y C C + I I 16 Equilibrium: Amount people want to buy = Amount produced Planned Expenditures = Aggregate Income AE = Y C + I = Y
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17 AE Y 45 o 45 o line gives points where AE=Y 20 Equilibrium AE Y C + I Y*
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AE Y C + I Y 1 Y* Y 2 Movement toward equilibrium. 25 Technical detail: Investment includes change in inventories. Planned investment includes planned change in inventories. Equilibrium occurs when planned
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This note was uploaded on 11/28/2010 for the course ECON 1 taught by Professor Martholney during the Fall '08 term at University of California, Berkeley.

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Lec18slides - Aggregate Output Amount produced = Aggregate output = Y Amount that people want to buy = Planned aggregate expenditures = AE

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