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Wealth Effect
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the change in the quantity of aggregate demand that results from wealth changes due to price-level changes
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interest rate effect
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occurs when a change in the price level leads to a change in interest rates and, therefore, in the quantity of aggregate demand
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exchange rate effect (net export)
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As a lower price level reduces interest rates, the dollar depreciates in the market for foreign-currency exchange, which stimulates net exports.
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Aggregate Demand
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the amount of goods and services in the economy that will be purchased at all possible price levels
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Aggregate Supply
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the total amount of goods and services in the economy available at all possible price levels
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Shifters of Aggregate Demand
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consumer spending, investment spending, government spending, net exports
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Shifters of Aggregate Supply
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1. Resource Prices
2. Actions of the Government (ex: taxes, regulations)
3. Productivity
4. Number of Sellers
5. Technology
6. Expectations of Future Prices
2. Actions of the Government (ex: taxes, regulations)
3. Productivity
4. Number of Sellers
5. Technology
6. Expectations of Future Prices
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fiscal policy
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the use of government spending and revenue collection to influence the economy
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Laffer Curve
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A relationship between the tax rates and tax revenues that illustrates that high tax rates could lead to lower tax revenues if economic activity is severely discouraged.
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tax base
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A form of wealth- such as income, property, goods, or services- that is subject to taxes
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tax structure
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The way taxes are imposed on different tax bases.
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progressive tax
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A tax for which the percentage of income paid in taxes increases as income increases
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proportional tax
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A tax in which the average tax rate is the same at all income levels.
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regressive tax
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A tax for which the percentage of income paid in taxes decreases as income increases
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expansionary fiscal policy
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An increase in government purchases of goods and services, a decrease in net taxes, or some combination of the two for the purpose of increasing aggregate demand and expanding real output
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contractionary fiscal policy
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Fiscal policy used to decrease aggregate demand or supply. Deliberate measures to decrease government expenditures, increase taxes, or both. Appropriate during periods of inflation.
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government budget deficit
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the value of government spending exceeds revenue from taxation
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government budget surplus
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an excess of government revenues over government spending during a given period of time
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Balanced government budget
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When tax revenue is equal to government spending
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national debt
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the total amount of money that a country's government has borrowed, by various means.
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What happens to PL and GDP when AD increases?
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They both increase
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What happens to PL and GDP when AD decreases?
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They both decrease
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What happens to PL and GDP when AS increases?
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PL Decreases and GDP increases
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What happens to PL and GDP when AS decreases?
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PL increases and GDP decreases
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Short Run Aggregate Supply
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a horizontal line showing the current rate of inflation, as determined by past expectations and pricing decisions
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Mid-run Aggregate Supply
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Upward sloping section where both prices and gdp change
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long-run aggregate supply curve
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The aggregate supply curve associated with a time period in which input prices (especially nominal wages) are fully responsive to changes in the price level.
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sticky prices
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a situation where prices of goods and services are slow to respond to changes in supply and demand
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Government Revenue
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Government income from taxes and non-tax sources
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Who conducts fiscal policy?
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Congress and the President