Aggregate Demand
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AP Macroeconomics › Aggregate Demand
A widespread increase in consumer confidence regarding future job security will most likely cause which of the following changes?
A rightward shift of the aggregate demand curve.
A movement up and to the left along the aggregate demand curve.
A movement down and to the right along the aggregate demand curve.
A leftward shift of the aggregate demand curve.
Explanation
Increased consumer confidence leads households to increase their current consumption spending, anticipating stable or rising future income. Since consumption ($$C$$) is a component of aggregate demand, an increase in consumption shifts the aggregate demand curve to the right.
Assume the government increases its spending on goods and services and also increases taxes by the exact same amount. What will be the effect on aggregate demand?
The effect is indeterminate without knowing the marginal propensity to consume.
Aggregate demand will remain unchanged because the two actions perfectly offset each other.
Aggregate demand will decrease because the tax multiplier is larger than the spending multiplier.
Aggregate demand will increase because the spending multiplier is larger than the tax multiplier.
Explanation
This scenario describes the balanced budget multiplier. The government spending multiplier is always larger in magnitude than the tax multiplier. This is because the entire amount of government spending directly enters the income-expenditure stream, while only a portion of the tax cut (determined by the MPC) is spent. Therefore, a simultaneous and equal increase in G and T will lead to a net increase in AD.
Which of the following would NOT cause a shift in the aggregate demand curve?
The central bank decides to sell government securities on the open market.
There is a significant decline in business confidence across the nation.
A widespread increase in the price of raw materials for production.
The national legislature passes a bill to increase spending on highways.
Explanation
An increase in the price of raw materials is a supply-side shock that affects production costs for firms. This would cause the short-run aggregate supply (SRAS) curve to shift to the left, not the aggregate demand (AD) curve. The other options all affect a component of AD (investment, government spending, or investment/consumption).
A large-scale effort by households to pay down their outstanding credit card and mortgage debt will most likely affect the aggregate demand curve by...
causing a movement down along the curve, because paying off debt reduces the price level.
shifting it to the right, because lower interest rates will result from the increase in savings.
shifting it to the left, because current consumption spending will be reduced.
causing no change, as debt repayment is a transfer of funds, not a purchase of final goods.
Explanation
When households prioritize paying down debt (deleveraging), they must allocate a larger portion of their disposable income to debt service and away from purchasing new goods and services. This reduction in current consumption spending ($$C$$) causes the aggregate demand curve to shift to the left.
Which of the following would cause a shift in the short-run aggregate supply curve but NOT in the aggregate demand curve?
A change in business expectations about future profitability.
A change in the central bank's target for the overnight lending rate.
A change in the income levels of a country's main trading partners.
A change in the costs of key productive inputs, such as oil.
Explanation
A change in the costs of productive inputs directly affects the profitability of production at any given price level, causing the short-run aggregate supply (SRAS) curve to shift. It does not directly change the components of aggregate demand ($$C$$, $$I$$, $$G$$, $$Xn$$). The other options are all determinants that shift the aggregate demand curve.
Which of the following events would cause a movement upward along the aggregate demand curve?
A decrease in household wealth due to a stock market decline.
An increase in government spending on national infrastructure.
An increase in the overall price level of the economy.
A technological advancement that boosts productivity.
Explanation
A change in the overall price level causes a movement along the aggregate demand curve. An increase in the price level leads to a decrease in the quantity of real GDP demanded, which is represented as an upward movement along the downward-sloping AD curve. The other options describe events that would shift the entire AD or AS curve.
The exchange rate effect contributes to the downward slope of the aggregate demand curve because a higher domestic price level leads to...
an increase in demand for foreign currencies, an appreciation of the domestic currency, and a decrease in net exports.
a decrease in demand for domestic currency, a depreciation of the currency, and an increase in net exports.
a higher domestic interest rate, an appreciation of the currency, and a decrease in net exports.
a lower domestic interest rate, a depreciation of the currency, and an increase in net exports.
Explanation
A higher domestic price level increases interest rates (due to the interest-rate effect). Higher interest rates attract foreign financial investment, increasing demand for the domestic currency and causing it to appreciate. This appreciation makes domestic goods more expensive for foreigners and foreign goods cheaper for domestic residents, leading to a decrease in net exports.
According to the interest rate effect, a rise in the aggregate price level causes which of the following sequences of events?
The real value of the currency appreciates, which decreases net exports and reduces the quantity of real GDP demanded.
The central bank increases the money supply, which lowers interest rates and stimulates both consumption and investment.
Households feel less wealthy, which decreases consumption, lowers the demand for money, and decreases interest rates.
Households need to hold more money, which increases the demand for money, raises interest rates, and decreases investment spending.
Explanation
The interest rate effect posits that a higher price level increases the demand for money for transactions. This increased demand for money drives up the nominal interest rate, which makes borrowing more expensive and thus reduces interest-sensitive spending, primarily investment and some consumption.
The real wealth effect explains why the aggregate demand curve is downward sloping. This effect occurs because a lower aggregate price level...
lowers the nominal interest rate, which encourages greater investment and interest-sensitive consumption.
increases the real value of consumers' financial assets, leading to an increase in consumption spending.
decreases the real value of the national debt, allowing the government to increase its spending on public goods.
makes domestically produced goods relatively cheaper for foreigners, leading to an increase in net exports.
Explanation
The real wealth effect (or real balances effect) states that when the aggregate price level falls, the purchasing power of money and other financial assets held by consumers increases. This increase in real wealth leads to higher consumption spending, thus increasing the quantity of real GDP demanded.
Which of the following combinations of events would definitely cause a rightward shift in the aggregate demand curve?
A decrease in the money supply and an increase in foreign incomes.
An increase in government spending and a decrease in the nominal interest rate.
An increase in personal income taxes and a decrease in government spending.
A decrease in consumer confidence and an appreciation of the domestic currency.
Explanation
A rightward shift in AD is caused by increases in C, I, G, or NX. An increase in government spending directly increases G. A decrease in the nominal interest rate stimulates both investment (I) and interest-sensitive consumption (C). Since both events push AD to the right, the combined effect is a definite rightward shift. All other options contain at least one factor that would shift AD to the left.