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What does the aggregate demand and aggregate supply model explain?
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Fluctuations in RGDP and the price level
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What does the intersection of the aggregate demand curve & the aggregate supply curve determine?
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Real GDP & the price level
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What causes fluctuations in RGDP and price level?
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Shifts in the aggregate supply/demand curves
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What shows the relationship btw the price level & the quantity of real GDP demanded by households, firms, & the govt?
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Aggregate demand curve
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What shows the relationship in the short run btw the price level & the quantity of RGDP supplied by firms?
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Short-run aggregate supply curve
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How is the aggregate demand & supply model different from the demand & supply in individual markets model?
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Aggregate curves apply to the whole economy, not just one market
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Why is the aggregate demand curve downward sloping?
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A fall in the price level increases the quantity of RGDP demanded
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What are the four components of GDP?
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Consumption, Investment, Government purchases, & Net eXports
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What must we assume when considering the affects of price level on each of the components of aggregate demand?
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Government purchases are determined by the policy decisions of lawmakers & are not affected by changes in the price level
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What components of aggregate demand does price level affect? (3)
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1. consumption2. investment3. net exports
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What is the most important variable determining the consumption of households?
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Current income
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What relationship does income have with consumption?
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As income rises, consumption rises, vice versa
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Households assets - households debts =
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Household wealth
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What is household wealth?
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The difference btw the value of a household's assets & the value of its debts
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What relationship does household wealth have with consumption?
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As household wealth rises, consumption rises, vice versa
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