Short Run Fiscal Actions - Macroeconomics

The government reduces income tax rates by 10% while simultaneously cutting government purchases by an equivalent amount in present value terms. If the marginal propensity to consume is 0.8 and taxpayers view the tax cuts as permanent, what is the most likely short-run effect on aggregate demand?
Answer: Aggregate demand decreases because spending multipliers exceed tax multipliers in magnitude When you encounter questions about simultaneous fiscal policy changes, you need to compare the relative magnitudes of different multipliers to determine the net effect on aggregate demand. With an MPC of 0.8, the tax multiplier equals $\frac{-MPC}{1-MPC} = \frac{-0.8}{0.2} = -4$ , while the government spending multiplier equals $\frac{1}{1-MPC} = \frac{1}{0.2} = 5$ . The tax cut increases aggregate demand by 4 times the tax reduction, but the spending cut decreases aggregate demand by 5 times the spending reduction. Since both policies are equivalent in present value terms, the spending cut's larger multiplier effect dominates, creating a net decrease in aggregate demand. Option A incorrectly claims tax multipliers exceed spending multipliers in magnitude. In absolute terms, |-4| < |5|, so spending multipliers are actually larger. Option B mentions Ricardian equivalence, which suggests consumers save tax cuts expecting future tax increases to pay for deficits—but this scenario involves equivalent cuts in both taxes and spending, maintaining budget balance. Option C wrongly assumes the multipliers are equal in magnitude, ignoring that the spending multiplier always exceeds the tax multiplier by the value of the MPC. Remember this key relationship: government spending multipliers are always larger in absolute value than tax multipliers because some portion of tax changes gets saved rather than spent immediately. When comparing equivalent fiscal policy changes, the one with the larger multiplier dominates the final outcome.
A state government increases spending on highway construction by $50 billion, funded by raising state income taxes by the same amount. Assuming the marginal propensity to consume is 0.8 and that highway construction has the same multiplier effects as other government purchases, what is the net impact on national GDP?
Answer: An increase of $50 billion due to the balanced budget multiplier effect This illustrates the balanced budget multiplier. The spending multiplier is 1/(1-0.8) = 5. The tax multiplier is -0.8/(1-0.8) = -4. When government spending and taxes increase by equal amounts: GDP change = $50B × 5 + $50B × (-4) = $250B - $200B = $50B. The balanced budget multiplier always equals 1, meaning GDP increases by exactly the amount of the spending/tax change. Choice A ignores multiplier effects. Choice C ignores the tax impact. Choice D incorrectly states the relative magnitudes of multipliers.
Assume a closed economy with a marginal propensity to consume (MPC) of 0.8. In the short run, what would be the initial difference in the impact on aggregate demand between a $50 billion increase in government purchases and a $50 billion decrease in lump-sum taxes?
Answer: The increase in government purchases would have a $10 billion greater impact on aggregate demand. A $50 billion increase in government purchases (G) directly increases aggregate demand by $50 billion. A $50 billion tax cut increases households' disposable income by $50 billion. However, only a fraction of this, determined by the MPC, is spent. The initial increase in consumption (C) is MPC × $50 billion = 0.8 × $50 billion = $40 billion. The difference in the initial impact is $50 billion (from G) - $40 billion (from C) = $10 billion.
Which of the following scenarios best illustrates the operation of an automatic stabilizer in the short run?
Answer: As corporate profits fall during a recession, corporate tax revenues collected by the government also fall. Automatic stabilizers are features of the tax and transfer system that automatically temper the business cycle without any new discretionary policy action. When corporate profits fall during a recession, the amount of tax owed automatically decreases. This cushions the fall in aggregate demand. The other options describe discretionary fiscal (B, D) or monetary (A) policies.
An economy experiences a severe recession with unemployment at 12%. The government implements a fiscal package with a present value of $300 billion, split equally between infrastructure spending (with a 2-year implementation lag) and immediate tax rebates to households. If the spending multiplier is 2.0 and the tax multiplier is -1.2, what describes the likely short-run pattern of fiscal impact?
Answer: Initial GDP increase of $180 billion from tax rebates, followed by additional $300 billion when spending begins When analyzing fiscal policy timing, you need to distinguish between when policies are announced, when they're implemented, and when their economic effects occur. Different fiscal tools have different lag structures that affect the pattern of GDP impact. The immediate tax rebates create an instant effect since households receive and can spend the money right away. With a tax multiplier of -1.2 and $150 billion in rebates, the initial GDP increase is $150 × 1.2 = 180$ billion. The infrastructure spending, however, faces a 2-year implementation lag, meaning its economic impact doesn't begin until year 3. When it does take effect, the $150 billion in spending creates an additional $150 × 2.0 = 300$ billion GDP increase. Answer A incorrectly assumes both policies take effect simultaneously and miscalculates the total impact as $360 billion, ignoring the implementation lag entirely. Answer B spreads the total $480 billion impact evenly over two years, but this misunderstands that the spending component doesn't begin contributing until after the lag period. Answer D suggests markets immediately price in future spending effects, but fiscal multipliers measure actual economic activity, not financial market anticipation. The correct answer is C because it captures the sequential nature: $180 billion immediate impact from tax rebates, followed by $300 billion additional impact when infrastructure spending finally begins. Study tip: Always pay attention to implementation lags in fiscal policy questions. Tax changes typically have immediate effects, while government spending often involves delays that create staggered economic impacts.
An economy is initially in long-run equilibrium. The government then passes a law that significantly cuts income taxes for all households. In the short run, what is the effect on the aggregate price level and real output?
Answer: The price level will increase, and real output will increase. A significant cut in income taxes is an expansionary fiscal policy. It increases households' disposable income, which boosts consumption spending. This causes the aggregate demand (AD) curve to shift to the right. Given an upward-sloping short-run aggregate supply (SRAS) curve, this rightward shift in AD leads to a new short-run equilibrium with a higher aggregate price level and a higher level of real output (an inflationary gap).
Suppose the government of a country with a flexible exchange rate implements a contractionary fiscal policy to reduce its budget deficit. Which of the following describes the most likely short-run consequence of this action on interest rates, the international value of its currency, and its net exports?
Answer: Interest rates fall, the currency depreciates, and net exports increase. Contractionary fiscal policy reduces government borrowing, which decreases the demand for loanable funds, causing real interest rates to fall. Lower interest rates reduce the inflow of financial capital, leading to a depreciation of the domestic currency. A weaker currency makes the country's exports cheaper and its imports more expensive, thereby increasing net exports.
Suppose a country's government significantly increases its spending to fund infrastructure projects while its central bank, fearing inflation, simultaneously sells a large volume of government bonds on the open market. In the short run, what is the most likely combined effect on real interest rates and real GDP?
Answer: Real interest rates will increase, and the effect on real GDP will be indeterminate. Increased government spending (expansionary fiscal policy) puts upward pressure on real interest rates by increasing demand for loanable funds. Selling bonds (contractionary monetary policy) reduces the money supply, which also puts upward pressure on interest rates. Therefore, real interest rates will definitely increase. However, the fiscal policy shifts aggregate demand right (increasing GDP), while the monetary policy shifts aggregate demand left (decreasing GDP). The net effect on real GDP is therefore indeterminate.
An economy unexpectedly enters a recession. Policymakers are debating a response. Which of the following statements most accurately contrasts the typical lags associated with fiscal and monetary policy?
Answer: Monetary policy has a shorter implementation lag but a longer effectiveness lag than fiscal policy. Monetary policy can be implemented relatively quickly by a central bank committee (short implementation lag), but its effects take time to work through interest rates, investment, and aggregate demand (long effectiveness lag). Fiscal policy requires a lengthy political and legislative process to pass (long implementation lag), but once enacted, changes in government spending can affect aggregate demand more immediately (shorter effectiveness lag).
The central bank undertakes a policy that leads to a significant decrease in the nominal interest rate. In the short run, how will this monetary policy action likely affect the international flow of financial capital and the country's net exports?
Answer: A financial capital outflow will occur, leading to an increase in net exports. A decrease in the domestic nominal interest rate makes domestic financial assets less attractive to foreign and domestic investors. This leads to an outflow of financial capital. The capital outflow increases the supply of the domestic currency on the foreign exchange market, causing the currency to depreciate. A depreciated currency makes domestic goods cheaper for foreigners and foreign goods more expensive for domestic consumers, thus increasing net exports.
When a central bank purchases $100 million of government bonds from commercial banks, what is the immediate effect on the balance sheet of the central bank?
Answer: Assets increase by $100 million, and liabilities increase by $100 million. When you encounter questions about central bank operations, focus on how transactions affect both sides of the balance sheet simultaneously. Every financial transaction must maintain the fundamental accounting equation: Assets = Liabilities + Equity. When the central bank purchases $100 million in government bonds from commercial banks, it acquires the bonds as assets worth $100 million. But how does it pay for these bonds? The central bank credits the commercial banks' reserve accounts, creating new bank reserves electronically. These newly created reserves appear as liabilities on the central bank's balance sheet because they represent money the central bank owes to the commercial banks. So the transaction increases assets (government bonds) by $100 million and increases liabilities (bank reserves) by $100 million, making answer D correct. Answer A is wrong because liabilities increase rather than decrease—the central bank creates new reserves to pay for the bonds. Answer B misses the point entirely; the central bank doesn't trade one asset for another, it creates new money to purchase bonds, expanding its balance sheet. Answer C suggests both assets and liabilities decrease, which would describe selling bonds and destroying reserves, the opposite of what's happening here. Remember this pattern: when central banks buy securities, they expand their balance sheet by creating new reserves. When they sell securities, they contract their balance sheet by destroying reserves. This is the fundamental mechanism of monetary policy operations.
The central bank of Country X conducts a large-scale open market purchase of government securities. Assuming no change in fiscal policy, what is the most likely short-run impact on the economy?
Answer: The money supply increases, causing nominal interest rates to fall and stimulating private investment. An open market purchase of securities by the central bank increases commercial bank reserves, which expands the money supply. An increase in the money supply leads to a lower nominal interest rate in the money market. This lower interest rate reduces the cost of borrowing, which stimulates investment and other interest-sensitive components of aggregate demand.
An economy has a marginal propensity to consume (MPC) of 0.75 and is experiencing a recessionary gap of $300 billion. Assume that for every dollar of government deficit spending, private investment is crowded out by $0.50. To close the recessionary gap completely using only an increase in government spending, the spending must increase by:
Answer: $150 billion First, calculate the spending multiplier: Multiplier = 1 / (1 - MPC) = 1 / (1 - 0.75) = 1 / 0.25 = 4. For every $1 increase in government spending (G), there is an initial $1 increase in AD, but also a $0.50 decrease in investment (I). The net initial change in spending is $1 - $0.50 = $0.50 for every $1 of G. Let $\Delta G$ be the required change in G. The total change in GDP is given by $Total \, \Delta Y = Multiplier \times Net \, Initial \, \Delta Spending$ . We need $\Delta Y = \$300$ billion. So, $300 = 4 \times ( $0.50 \times \Delta G$ )\). This simplifies to $300 = 2 \times \Delta G\). Solving for $\Delta G$ gives $\Delta G = \$150$ billion.
An economy is in short-run equilibrium with an unemployment rate of 5% and an inflation rate of 2%. The central bank, aiming to reduce unemployment, engages in unexpectedly expansionary monetary policy. In the short run, this action will most likely cause a:
Answer: movement up and to the left along the short-run Phillips curve. Expansionary monetary policy stimulates aggregate demand, which leads to higher output and therefore lower unemployment (movement to the left on Phillips curve). This increase in aggregate demand also puts upward pressure on the price level, causing higher inflation (movement up on Phillips curve). The combination of lower unemployment and higher inflation corresponds to a movement up and to the left along a stable short-run Phillips curve.
Suppose the government embarks on a major expansionary fiscal policy by increasing its purchases. To prevent this policy from significantly increasing interest rates, the central bank decides to conduct monetary policy to keep interest rates stable. Which of the following describes the monetary policy action and the likely short-run outcome for real output?
Answer: The central bank will buy bonds; real output will increase significantly. Expansionary fiscal policy increases aggregate demand but also increases the demand for money and loanable funds, putting upward pressure on interest rates. To keep interest rates from rising, the central bank must increase the money supply. It does this through an expansionary monetary policy: buying government bonds. This policy, known as 'monetizing the debt' or an 'accommodating' monetary policy, also increases aggregate demand. Since both policies are expansionary, the combined effect is a large rightward shift of the AD curve and a significant increase in real output.
To implement contractionary monetary policy, a central bank could take which of the following combinations of actions?
Answer: Increase the required reserve ratio and sell government securities. When you encounter monetary policy questions, focus on understanding the central bank's tools and their effects on money supply. Contractionary monetary policy aims to reduce money supply and economic activity to combat inflation. The correct answer is D because both actions work together to contract the money supply. When the central bank increases the required reserve ratio, commercial banks must hold more money in reserves and have less available for lending, directly reducing the money supply. Simultaneously, selling government securities removes money from the banking system as banks and investors pay cash to purchase these bonds. Both tools tighten monetary conditions. Choice A is incorrect because decreasing the discount rate makes borrowing cheaper for banks, encouraging more lending and expanding money supply. Purchasing government securities also injects money into the system. Both actions are expansionary, not contractionary. Choice B represents expansionary policy as well. Decreasing the required reserve ratio frees up bank reserves for lending, while purchasing securities adds money to the financial system. Choice C mixes monetary and fiscal policy incorrectly. While raising the policy interest rate is contractionary monetary policy, decreasing income taxes is expansionary fiscal policy controlled by government, not the central bank. Central banks don't set tax policy. Remember this pattern: contractionary monetary policy involves higher rates, higher reserve requirements, and selling securities (reducing money supply). Expansionary policy does the opposite. Don't confuse monetary policy tools (controlled by central banks) with fiscal policy tools like taxes and government spending (controlled by legislative bodies).
An economy operating at full employment experiences a positive demand shock that pushes output 3% above potential GDP. If policymakers want to return to long-run equilibrium using only fiscal policy, and the spending multiplier is 2.5, what type and relative magnitude of fiscal adjustment is required?
Answer: Contractionary policy with spending cuts equal to 1.2% of the output gap to account for multiplier effects With output 3% above potential, contractionary fiscal policy is needed. Since the spending multiplier is 2.5, each 1% reduction in government spending reduces GDP by 2.5%. To reduce output by 3%, spending must be cut by 3% ÷ 2.5 = 1.2% of GDP. Choice B ignores the multiplier effect. Choice C incorrectly suggests expansionary policy when the economy is overheating. Choice D mentions tax increases but calculates an incorrect magnitude (3.75% is too high even accounting for smaller tax multipliers).
The central bank announces a new, credible commitment to maintaining an inflation rate of 2%. Previously, the expected rate of inflation was 5%. What is the most likely short-run effect of this announcement, assuming it is widely believed by the public?
Answer: The short-run Phillips curve will shift downward. When you encounter questions about credible changes in inflation expectations, focus on how the Phillips curve framework responds to shifts in what people believe will happen to prices. The Phillips curve shows the trade-off between unemployment and inflation. The short-run Phillips curve's position depends critically on inflation expectations. When the central bank makes a credible announcement that inflation will be 2% instead of the previously expected 5%, this fundamentally changes the entire relationship between unemployment and inflation. With lower inflation expectations, workers will demand smaller wage increases and firms will plan for smaller price increases at every level of unemployment. This shifts the entire short-run Phillips curve downward, meaning that any given unemployment rate is now associated with lower actual inflation. Answer D correctly identifies this downward shift of the curve itself. Answer A is wrong because the long-run Phillips curve is vertical and doesn't shift left or right based on inflation expectations—it's determined by structural factors in the economy. Answer B describes a movement to lower unemployment and higher inflation along an existing curve, which would happen if the economy were stimulated, not from an expectations change. Answer C describes movement to higher unemployment and lower inflation along an existing curve, which might occur during a recession but doesn't capture how expectations affect the curve's position. Remember: Changes in inflation expectations shift the short-run Phillips curve, while changes in economic policy or shocks cause movements along the curve. Credible central bank announcements are powerful because they directly influence where the curve sits.
To combat a recession, a government enacts a one-time tax rebate for all households, financed by issuing new government debt. According to the standard Keynesian model, what is the most likely short-run effect of this policy?
Answer: Aggregate demand will increase as households spend a portion of the rebate, increasing consumption. The standard Keynesian model posits that a tax rebate increases households' disposable income. Households will spend a fraction of this additional income, determined by the marginal propensity to consume (MPC), and save the rest. The increase in consumption spending leads to a rightward shift in the aggregate demand curve.
Congress passes a fiscal stimulus package including both increased government spending and reduced taxes, financed entirely by borrowing. The Federal Reserve responds by increasing the money supply to prevent interest rates from rising. Compared to the fiscal policy alone, this coordinated approach will most likely result in:
Answer: A larger increase in real GDP since monetary policy prevents crowding out of private investment When you encounter questions about coordinated fiscal and monetary policy, focus on how these policies can either reinforce or counteract each other's effects, particularly regarding interest rates and private investment. Fiscal stimulus through increased spending and tax cuts typically leads to higher government borrowing, which increases demand for loanable funds and pushes interest rates up. This creates "crowding out" - higher rates discourage private investment and consumption, partially offsetting the stimulative effects. However, when the Federal Reserve simultaneously increases the money supply, it prevents this interest rate increase by ensuring adequate liquidity in financial markets. Option C is correct because monetary accommodation eliminates the crowding out effect. With interest rates held steady, private investment remains strong while fiscal policy directly boosts aggregate demand. The combined effect amplifies the overall increase in real GDP since both the direct fiscal stimulus and private sector spending work together rather than fiscal policy being partially offset by reduced private investment. Option A incorrectly suggests monetary accommodation weakens fiscal multipliers, when it actually strengthens them by preserving private investment. Option B wrongly assumes fiscal and monetary policies affect separate sectors - they both influence aggregate demand and interact significantly through interest rate channels. Option D mischaracterizes this as conflicting policies when they're actually complementary in this scenario. Remember: coordinated expansionary policies typically produce larger effects than either policy alone because monetary policy can neutralize the negative side effects (like crowding out) of fiscal expansion while preserving the positive stimulus effects.

Start this quiz