Macroeconomics Quiz: Short Run Aggregate Supply Sras
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Short Run Aggregate Supply SrasQuestion 1 of 20

Which of the following government policies would be most likely to cause a rightward shift in the short-run aggregate supply curve?

Increasing the duration and amount of unemployment benefits.
Providing tax credits for firms that invest in research and development.
Increasing personal income taxes to reduce the budget deficit.
Financing new infrastructure projects by borrowing from the public.
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Macroeconomics Quiz: Short Run Aggregate Supply Sras

Practice Short Run Aggregate Supply Sras in Macroeconomics with focused quiz questions that help you check what you know, review explanations, and build confidence with test-style prompts.

What this quiz covers

This quiz focuses on Short Run Aggregate Supply Sras, giving you a quick way to practice the rules, question types, and explanations that matter most for Macroeconomics.

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Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.

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Question 1

Which of the following government policies would be most likely to cause a rightward shift in the short-run aggregate supply curve?

  1. Increasing the duration and amount of unemployment benefits.
  2. Providing tax credits for firms that invest in research and development. (correct answer)
  3. Increasing personal income taxes to reduce the budget deficit.
  4. Financing new infrastructure projects by borrowing from the public.
Explanation: A rightward shift in SRAS is caused by factors that increase productivity or reduce production costs. Tax credits for research and development (R&D) incentivize firms to innovate. Successful R&D leads to technological progress, which increases productivity and lowers the cost of production, shifting the SRAS (and LRAS) curve to the right. Increasing unemployment benefits (A) might shift SRAS left by reducing labor supply. Increasing personal income taxes (C) and government spending (D) primarily affect the aggregate demand curve.

Question 2

Assume the economy's short-run aggregate supply is described by the equation Y=Y∗+α(P−Pe)Y = Y^* + \alpha(P - P^e), where YY is real output, Y∗Y^* is potential output, PP is the price level, and PeP^e is the expected price level. If potential output is $2 trillion, α=1000\alpha = 1000, and the expected and actual price levels are both 1.20, what will be the short-run level of output if a sudden oil shock raises the actual price level to 1.25 while the expected price level rises to 1.28?

  1. $1.97 trillion (correct answer)
  2. $2.00 trillion
  3. $2.05 trillion
  4. $2.03 trillion
Explanation: Using the SRAS equation Y=Y∗+α(P−Pe)Y = Y^* + \alpha(P - P^e) with the given values: Y^* = \2trillion,trillion,\alpha = 1000,, P = 1.25,and, and P^e = 1.28.Substituting:. Substituting: Y = 2000 + 1000(1.25 - 1.28) = 2000 + 1000(-0.03) = 2000 - 30 = 1970$ billion dollars, which equals $1.97 trillion. The negative term reflects that expected prices rose more than actual prices, reducing output below potential.

Question 3

An economy has been experiencing steady 3% annual inflation for several years. Workers and firms have adapted their expectations accordingly. The government then announces a permanent reduction in corporate tax rates, effective immediately.

Given the scenario above, what is the most likely short-run effect on the SRAS curve, and what complicating factor should be considered?

  1. SRAS shifts rightward permanently because tax reductions provide sustained cost advantages that don't erode over time
  2. SRAS shifts leftward because lower corporate taxes increase aggregate demand, which raises input prices through increased competition
  3. SRAS remains unchanged because corporate tax changes affect firm profits but not marginal production costs per unit
  4. SRAS shifts rightward due to lower business costs, but the effect may be temporary if tax savings are used for wage increases (correct answer)
Explanation: When you encounter questions about supply-side policy changes, focus on how they affect firms' production costs and consider both immediate and secondary effects on the Short-Run Aggregate Supply (SRAS) curve. A corporate tax reduction immediately lowers business costs, making production less expensive at every output level. This shifts SRAS rightward as firms can supply more goods at each price level. However, the key insight is recognizing that this effect may not be permanent due to economic adjustments over time. Answer D correctly identifies both the immediate rightward SRAS shift from lower business costs and the crucial complicating factor: firms may use their tax savings to increase wages or invest in ways that eventually raise their costs again, potentially offsetting the initial benefit. Answer A is wrong because it assumes the cost advantage is permanent, ignoring how firms might respond to increased profits by raising wages or how competition might erode the advantage. Answer B incorrectly focuses on demand-side effects when the question specifically asks about SRAS impacts from a supply-side policy change. While increased demand might eventually raise input prices, the direct effect is on supply costs. Answer C misunderstands how corporate taxes work – they are indeed a cost of doing business that affects marginal production decisions, not just profits. Remember that supply-side policy questions often have both immediate and longer-term effects. The immediate impact is usually straightforward (lower costs = rightward SRAS shift), but always consider how economic actors might adjust their behavior in response, potentially creating offsetting effects.

Question 4

If nominal wages and other input prices become more flexible and adjust more quickly to changes in the overall price level, the short-run aggregate supply curve will

  1. become steeper. (correct answer)
  2. become flatter.
  3. shift to the right.
  4. shift to the left.
Explanation: The upward slope of the SRAS curve is explained by the stickiness of wages and prices. If wages and prices were perfectly flexible, the SRAS curve would be vertical, just like the LRAS curve. Therefore, as nominal wages become more flexible (less sticky), the economy behaves more like its long-run depiction. The SRAS curve will become steeper, approaching the vertical LRAS curve. A flatter curve would imply wages are becoming more sticky.

Question 5

An economy experiences a 10% increase in labor productivity due to improved training programs. At the same time, energy prices rise by 20%. If labor represents 70% of production costs and energy represents 15% of production costs, what is the most likely effect on SRAS?

  1. SRAS remains unchanged because productivity gains in labor are exactly offset by higher costs in energy inputs
  2. SRAS shifts leftward because energy price increases typically have multiplier effects throughout the economy that exceed their direct cost impact
  3. SRAS shifts rightward because productivity improvements create permanent cost advantages while energy price increases are usually temporary
  4. SRAS shifts rightward because the 7% reduction in labor costs (70% × 10%) exceeds the 3% increase in energy costs (15% × 20%) (correct answer)
Explanation: When analyzing shifts in Short-Run Aggregate Supply (SRAS), you need to calculate the net effect of changes in production costs. SRAS shifts right when overall production costs decrease and left when they increase. Let's work through the math systematically. The 10% increase in labor productivity means firms can produce the same output with 10% less labor cost. Since labor represents 70% of production costs, this creates a cost reduction of 70%×10%=7%70\% \times 10\% = 7\%. Meanwhile, the 20% increase in energy prices raises costs by 15%×20%=3%15\% \times 20\% = 3\% since energy represents 15% of production costs. The net effect is a 7% cost reduction minus a 3% cost increase, yielding a 4% overall reduction in production costs. This shifts SRAS rightward, making answer D correct. Answer A incorrectly suggests the effects cancel out, but the calculations show labor savings (7%) exceed energy cost increases (3%). Answer B focuses on multiplier effects, but the question asks you to analyze the direct cost impacts given the specific percentages. While energy shocks can have broader effects, you should work with the information provided. Answer C makes the mistake of assuming permanence matters for SRAS shifts, but SRAS reflects current production costs regardless of whether changes are temporary or permanent. Study tip: On SRAS questions involving multiple cost factors, always calculate the weighted impact of each change (percentage of costs × percentage change), then find the net effect. Don't get distracted by discussions of multiplier effects or permanence unless the question specifically asks about long-term impacts.

Question 6

In an economy where nominal wages are sticky downward but adjust upward quickly, suppose there is a temporary negative supply shock followed immediately by a positive supply shock of equal magnitude. What is the most likely net effect on the SRAS curve?

  1. SRAS returns exactly to its original position because the shocks are equal in magnitude and opposite in direction
  2. SRAS ends up to the left of its original position due to wage stickiness preventing full adjustment during the recovery (correct answer)
  3. SRAS ends up to the right of its original position because positive shocks have larger effects than negative ones
  4. SRAS becomes more volatile and unpredictable because rapid successive shocks disrupt normal price adjustment mechanisms
Explanation: The negative supply shock initially shifts SRAS leftward and may trigger wage increases as workers respond to higher prices. When the positive shock occurs, it would normally shift SRAS rightward, but the wages that rose during the negative shock are sticky downward and don't fall quickly. This asymmetric wage adjustment means the economy doesn't fully return to its original position. Choice A ignores the asymmetric nature of wage adjustments. Choice C incorrectly suggests positive shocks inherently have larger effects. Choice D confuses short-term volatility with the systematic effects of wage stickiness.

Question 7

An economy's SRAS curve is initially upward sloping. A technological breakthrough reduces production costs, while simultaneously, workers' inflation expectations increase significantly. If both effects are of similar magnitude, what is the most likely outcome for the SRAS curve?

  1. SRAS shifts rightward because technological improvements have immediate effects while expectation changes affect wages gradually (correct answer)
  2. SRAS shifts leftward because higher inflation expectations lead to immediate wage demands that outweigh technology benefits
  3. SRAS remains approximately unchanged because the cost-reducing technology offsets the cost-increasing wage expectations
  4. SRAS becomes more vertical because both technology and expectations reduce the responsiveness of output to price changes
Explanation: Technological improvements typically affect production costs immediately as firms adopt new processes or equipment. However, inflation expectations affect wages through contract negotiations and renegotiations, which take time to implement. In the short run, the technology effect dominates, shifting SRAS rightward. Choice B incorrectly assumes expectation changes have immediate effects on wages. Choice C assumes both effects occur simultaneously with equal impact, ignoring the timing difference. Choice D confuses factors that shift SRAS with factors that change its slope.

Question 8

Following a severe drought, agricultural productivity falls significantly. However, the central bank simultaneously implements an expansionary monetary policy that increases the general price level. If the monetary expansion's effect on prices is larger than the drought's effect on costs, what happens to the real wage and the SRAS curve?

  1. Real wages decrease and SRAS shifts rightward because lower real wages reduce production costs despite higher nominal prices (correct answer)
  2. Real wages increase and SRAS shifts leftward because workers demand higher compensation for reduced agricultural output
  3. Real wages decrease and SRAS shifts leftward because both the drought and falling real wages increase production costs
  4. Real wages remain constant and SRAS shifts leftward because monetary policy affects only nominal variables in the short run
Explanation: When the general price level rises more than production costs due to monetary expansion, real wages fall (nominal wages don't immediately adjust to price increases). Lower real wages reduce labor costs for firms, which tends to shift SRAS rightward. Although the drought increases some production costs, the dominant effect described is the monetary expansion reducing real wages. Choice B incorrectly suggests real wages increase when prices rise faster than wages. Choice C correctly identifies falling real wages but wrongly concludes this increases rather than decreases production costs. Choice D incorrectly assumes real wages remain constant when price levels change.

Question 9

An economy experiences a sudden increase in the price of imported oil, which is a key input in production. Simultaneously, workers receive cost-of-living adjustments that increase nominal wages by the same percentage as the oil price increase. What is the most likely immediate effect on the short-run aggregate supply (SRAS) curve?

  1. SRAS shifts leftward because higher input costs outweigh wage adjustments in determining production costs (correct answer)
  2. SRAS shifts rightward because wage increases stimulate productivity growth that offsets higher energy costs
  3. SRAS remains unchanged because the proportional increase in wages exactly compensates for higher oil prices
  4. SRAS becomes steeper because firms become less responsive to price changes due to increased input uncertainty
Explanation: When oil prices increase, production costs rise for most firms since oil is a key input across many industries. Although wages also increase proportionally, this creates an additional cost burden rather than offsetting the oil price increase. The wage adjustment doesn't reduce the oil cost - it adds another layer of cost increase. Therefore, total production costs rise, causing SRAS to shift leftward. Choice B is wrong because wage increases don't automatically boost productivity. Choice C incorrectly assumes wage increases offset rather than add to oil costs. Choice D confuses the slope of SRAS with shifts of the curve.

Question 10

An economy's SRAS curve has been stable for two years. Suddenly, inflation expectations jump from 2% to 6% annually due to geopolitical tensions, while actual inflation remains at 2%. Assuming wage contracts are renegotiated annually and half come up for renewal immediately, what is the most likely short-run effect on SRAS?

  1. SRAS shifts leftward by the full amount that 6% inflation expectations would suggest, since expectations drive immediate behavior
  2. SRAS shifts leftward, but by less than half the amount that 6% expectations would suggest, due to partial contract renewal (correct answer)
  3. SRAS remains unchanged because actual inflation hasn't increased, and firms base decisions on reality rather than expectations
  4. SRAS shifts rightward because the gap between expectations and reality creates temporary cost advantages for firms
Explanation: When inflation expectations rise from 2% to 6%, workers will demand higher wages in new contracts to maintain real purchasing power. However, only half the contracts are renewed immediately, so only half the workforce gets wage increases based on 6% expectations. This partial adjustment shifts SRAS leftward, but by less than would occur if all wages adjusted simultaneously. Choice A ignores the constraint of contract timing. Choice C incorrectly assumes expectations don't affect wage negotiations until actual inflation changes. Choice D incorrectly suggests that expectation-reality gaps create cost advantages when they actually create cost pressures through wage negotiations.

Question 11

A country implements new environmental regulations that require firms to install expensive pollution control equipment. At the same time, technological advances in manufacturing processes reduce the per-unit cost of production by approximately the same dollar amount as the regulatory compliance costs. How will these simultaneous changes most likely affect the position of the SRAS curve?

  1. SRAS will shift rightward because technological improvements typically have larger long-term effects than regulatory costs
  2. SRAS will shift leftward because regulatory compliance costs are immediate while technology benefits are gradual
  3. SRAS will remain in approximately the same position since the cost increases and decreases roughly offset (correct answer)
  4. SRAS will become flatter because firms can now adjust output more easily in response to price changes
Explanation: When regulatory costs and technological cost savings are approximately equal in magnitude, the net effect on per-unit production costs is minimal, leaving SRAS in roughly the same position. Choice A incorrectly suggests that technological improvements automatically dominate regulatory costs regardless of their relative magnitudes. Choice B makes an unfounded assumption about timing - the question states both effects occur simultaneously. Choice D confuses changes in the slope of SRAS with shifts in the curve's position.

Question 12

Which of the following events would cause a movement up along the short-run aggregate supply (SRAS) curve rather than a shift of the curve?

  1. A widespread increase in nominal wages negotiated by labor unions.
  2. An increase in the price of crude oil, a key input for many industries.
  3. A surge in consumer optimism that leads to higher household spending. (correct answer)
  4. The public's expectation of a higher future price level.
Explanation: A movement along the SRAS curve is caused by a change in the aggregate price level. A surge in consumer optimism shifts the aggregate demand (AD) curve to the right. This increase in AD leads to a higher equilibrium price level, causing a movement up along the existing SRAS curve. The other options are all factors that shift the SRAS curve itself: higher nominal wages (A), higher input prices (B), and higher expected prices (D) all increase the costs of production and shift the SRAS curve to the left.

Question 13

Which of the following scenarios best illustrates the 'misperceptions theory' as an explanation for the upward-sloping short-run aggregate supply curve?

  1. A software company cannot reduce its employees' salaries despite a fall in demand for its product because of two-year employment contracts.
  2. A coffee shop owner observes an increase in the price of coffee and increases her shop's output, believing demand for her coffee has risen, when in fact the general price level has increased. (correct answer)
  3. A car manufacturer continues to sell its cars at the price listed in its annual catalog even though the prices of steel and other inputs have risen unexpectedly.
  4. A nation's central bank prints more money, causing all prices and wages to increase proportionally with no change in real output.
Explanation: The misperceptions theory suggests that firms can confuse changes in the overall price level with changes in the relative prices of their own products. In this scenario, the coffee shop owner misinterprets a general price increase (inflation) as a specific increase in the demand for her coffee. This misperception leads her to increase production. This is the core mechanism of the misperceptions theory. Choice A describes sticky wages, choice C describes sticky prices, and choice D describes the long-run neutrality of money.

Question 14

Suppose a government reduces the generosity of unemployment benefits and invests in job retraining programs, leading to a decrease in the natural rate of unemployment. What is the effect on the short-run aggregate supply (SRAS) curve?

  1. It shifts to the left because lower benefits reduce aggregate demand.
  2. It does not shift, but the long-run aggregate supply curve shifts to the right.
  3. It shifts to the right because potential output has increased. (correct answer)
  4. There is a movement down along the curve as lower unemployment reduces wage pressures.
Explanation: A decrease in the natural rate of unemployment means that for a given labor force, more people are employed, and the economy can produce more goods and services. This represents an increase in the economy's potential output (Y*). An increase in potential output shifts the long-run aggregate supply curve to the right. Because the SRAS curve's position is fundamentally tied to the same factors of production (labor, capital, technology) that determine potential output, the SRAS curve also shifts to the right.

Question 15

A country's economy is in long-run equilibrium. Its central bank, which has maintained stable prices for years, makes a surprise announcement of a major asset purchase program expected to be inflationary. Before the program is even implemented, firms and workers begin to anticipate higher prices. This change in expectations will, by itself,

  1. shift the short-run aggregate supply curve to the left. (correct answer)
  2. shift the short-run aggregate supply curve to the right.
  3. cause a movement up along the short-run aggregate supply curve.
  4. shift the aggregate demand curve to the left.
Explanation: The position of the SRAS curve depends on the expected price level. If firms and workers expect the price level to be higher in the future, workers will demand higher nominal wages, and firms will anticipate higher input costs. To cover these higher expected costs, firms will be willing to supply any given quantity of output only at a higher price level. This relationship is represented by a shift of the SRAS curve to the left.

Question 16

An economy experiences a period of 'stagflation'. Using the aggregate supply and aggregate demand model, this outcome is caused by a

  1. rightward shift of the aggregate demand curve.
  2. leftward shift of the aggregate demand curve.
  3. rightward shift of the short-run aggregate supply curve.
  4. leftward shift of the short-run aggregate supply curve. (correct answer)
Explanation: Stagflation is defined as a combination of rising prices (inflation) and falling output (stagnation). In the AD-AS model, a leftward shift of the short-run aggregate supply curve leads to a new short-run equilibrium at a higher price level and a lower level of real GDP. This matches the definition of stagflation. This shift is typically caused by a negative supply shock, such as a sudden increase in the price of a major input like oil.

Question 17

Consider two events: (1) a temporary, sharp increase in the price of electricity due to a grid failure, and (2) a permanent advance in semiconductor technology that lowers the cost of all electronics. Which statement correctly identifies the short-run effects on aggregate supply?

  1. Both events shift the SRAS curve to the left.
  2. Event (1) causes a movement along the SRAS curve, while event (2) shifts the SRAS curve to the right.
  3. Event (1) shifts the SRAS curve to the left, while event (2) shifts the SRAS curve to the right. (correct answer)
  4. Both events shift the SRAS curve to the right.
Explanation: Event (1), an increase in the price of electricity, is an increase in a key input cost for nearly all businesses. This is a negative supply shock that shifts the SRAS curve to the left. Event (2), a permanent advance in technology, increases productivity and lowers production costs. This is a positive supply shock that shifts the SRAS curve to the right. It would also shift the LRAS curve to the right, but the question focuses on the short-run effect.

Question 18

The government repeals a law that required firms to pay for a portion of their employees' health insurance. At the same time, forward-looking commodity markets begin to price in a future global boom, raising expectations about the future price level. What is the net effect on the short-run aggregate supply (SRAS) curve?

  1. The SRAS curve will definitively shift to the right.
  2. The SRAS curve will definitively shift to the left.
  3. The position of the SRAS curve will be ambiguous. (correct answer)
  4. The SRAS curve will not shift, but the aggregate demand curve will shift to the right.
Explanation: These two events have opposing effects on the SRAS curve. Repealing the mandatory health insurance payment reduces the cost of labor for firms, which is a positive supply shock that shifts the SRAS curve to the right. Conversely, an increase in the expected future price level leads workers to demand higher nominal wages and firms to expect higher input costs, which is a negative supply shock that shifts the SRAS curve to the left. Since the two effects push the curve in opposite directions, the net effect on the position of the SRAS curve is ambiguous without knowing the relative magnitudes of the two shocks.

Question 19

Suppose that due to a change in the demographic structure of the labor force, nominal wages become less sensitive to the unemployment rate. This means that wages are now 'stickier' than before. This change would cause the short-run aggregate supply curve to become

  1. flatter, indicating a larger output response to a change in the price level. (correct answer)
  2. steeper, indicating a smaller output response to a change in the price level.
  3. vertical, as output becomes completely independent of the price level.
  4. horizontal, as firms are willing to supply any amount at a fixed price level.
Explanation: The upward slope of the SRAS is due to sticky wages/prices. If wages become even stickier (less responsive), then when the overall price level rises, firms' real labor costs will fall by a larger amount and for a longer period. This provides a stronger incentive to increase production. Therefore, for any given increase in the price level, the increase in the quantity of output supplied will be larger. This relationship is represented by a flatter SRAS curve.

Question 20

An economy is in long-run equilibrium when the overall price level unexpectedly falls. According to the sticky-wage theory, what are the immediate short-run consequences for the real wage paid by firms and the level of employment?

  1. The real wage falls, and employment rises.
  2. The real wage rises, and employment falls. (correct answer)
  3. The real wage falls, and employment falls.
  4. The real wage rises, and employment rises.
Explanation: According to the sticky-wage theory, nominal wages (W) are fixed in the short run. The real wage is the nominal wage divided by the price level (W/P). If the price level (P) unexpectedly falls while the nominal wage (W) remains sticky, the real wage (W/P) increases. For firms, labor has become more expensive in real terms. In response to higher real labor costs, firms will reduce the quantity of labor they demand, leading to a decrease in employment and output.