- An economy is in long-run equilibrium. A sudden, sustained decrease in household wealth causes a recessionary gap. Assuming flexible wages and prices and no policy intervention, which sequence of events describes the long-run self-adjustment process?
Answer: The fall in aggregate demand leads to higher unemployment, which eventually causes nominal wages to fall, shifting the short-run aggregate supply curve to the right.
The decrease in household wealth shifts the aggregate demand (AD) curve to the left, creating a recessionary gap (lower output, lower price level, higher unemployment). In the long run, the high unemployment puts downward pressure on nominal wages. As wages are a key input cost, lower nominal wages shift the short-run aggregate supply (SRAS) curve to the right. This process continues until output returns to the full-employment level at a new, lower price level.
- Which of the following would most likely increase the speed of an economy's long-run self-adjustment from an inflationary gap?
Answer: A high degree of labor mobility and information flow in the labor market.
The self-adjustment from an inflationary gap depends on how quickly nominal wages rise in response to a tight labor market. High labor mobility and good information flow mean that workers are aware of better-paying opportunities and can easily move to fill them. This increases competition among firms for workers and accelerates the bidding up of nominal wages. This, in turn, leads to a faster leftward shift of the SRAS curve, speeding up the return to long-run equilibrium. Menu costs and long-term contracts (A and B) slow down adjustments. Anchored expectations (C) might slow the wage-price spiral, not speed up the correction.
- The classical model's assumption of perfectly flexible wages and prices implies that the long-run self-adjustment mechanism...
Answer: ...is irrelevant because the economy is always at full employment.
The core of the classical macroeconomic model is the assumption that wages and prices are perfectly flexible. In such a world, any deviation from full employment is corrected almost instantaneously. A drop in aggregate demand, for example, would immediately cause wages and prices to fall, shifting the SRAS curve and maintaining output at the full-employment level. Thus, in a purely classical world, the 'adjustment mechanism' is so fast that the economy is effectively always on its long-run aggregate supply curve, and cyclical unemployment is not a significant issue.
- A permanent, positive technological shock affects an economy that was in long-run equilibrium. Which statement accurately describes the adjustment to the new long-run equilibrium?
Answer: LRAS and SRAS shift right. The economy moves to a new long-run equilibrium with higher output and a lower price level without a cyclical gap adjustment.
When analyzing technological shocks, you need to understand how they affect both long-run and short-run aggregate supply curves simultaneously, and recognize that positive technology shocks are fundamentally different from demand-side disruptions.
A permanent positive technological shock increases productivity across the economy, making production more efficient. This immediately shifts both the Long-Run Aggregate Supply (LRAS) and Short-Run Aggregate Supply (SRAS) curves to the right. The LRAS shifts because the economy's productive capacity has permanently increased. The SRAS shifts because firms can now produce the same output at lower costs, or more output at the same costs.
Since both curves shift right together by the same amount, the economy moves directly to a new long-run equilibrium with higher real GDP and a lower price level. There's no temporary gap created that requires wage adjustments—the shift is immediate and permanent.
Choice A incorrectly suggests an inflationary gap forms, but when LRAS and SRAS shift together, no gap occurs. Choice B wrongly claims SRAS doesn't shift—technological improvements absolutely affect short-run production costs. Choice C describes a recessionary gap scenario, which would only happen if LRAS shifted right while SRAS remained fixed or shifted left, creating excess capacity.
The key insight is that supply-side improvements like technology advances affect both supply curves simultaneously, unlike demand shocks or temporary supply disruptions. Remember: positive technology shocks are "win-win" scenarios—higher output with lower prices, no painful adjustment period required.
- Following a positive aggregate demand shock, an economy is producing beyond its long-run potential. As the economy self-adjusts, what happens to the components of aggregate demand?
Answer: Consumption, investment, and net exports will decrease due to the rising price level.
The self-adjustment process from an inflationary gap involves the SRAS curve shifting to the left, which causes the overall price level to rise. This rise in the price level causes a movement along the fixed aggregate demand curve. Due to the wealth effect (higher prices reduce real wealth), the interest-rate effect (higher prices increase demand for money, raising interest rates), and the foreign price effect (higher domestic prices reduce exports), the quantities of consumption, investment, and net exports demanded will all decrease as the price level rises.
- In a country where most labor contracts include cost-of-living adjustments (COLAs) that automatically raise nominal wages with inflation, how would the long-run self-adjustment to an inflationary gap differ from a country without COLAs?
Answer: The adjustment would be faster because nominal wages respond more quickly to price level changes.
The self-adjustment from an inflationary gap involves rising nominal wages shifting the SRAS curve left. COLAs formalize and accelerate this process. As soon as the price level rises due to the initial demand shock, COLAs trigger automatic increases in nominal wages. This causes the SRAS curve to shift to the left more quickly than it would if workers had to wait to renegotiate contracts, thus speeding up the return to long-run equilibrium.
- Consider two economies, both initially at full employment. Economy A has highly flexible wages and prices, while Economy B has sticky wages and prices. Both experience identical negative demand shocks. After two years of self-adjustment, which comparison is most accurate?
Answer: Economy A will have returned closer to full employment with a lower price level than Economy B
With flexible wages and prices, Economy A can adjust more quickly to the negative demand shock. Wages and prices fall faster, allowing SRAS to shift rightward more rapidly, restoring employment while achieving a lower price level. Economy B's sticky wages slow the adjustment process, leaving it with higher unemployment and a higher price level after two years. Choice A incorrectly suggests higher inflation in the faster-adjusting economy. Choice C ignores the impact of wage/price flexibility. Choice D incorrectly suggests sticky wages help employment.
- An economy is currently experiencing a recessionary gap with unemployment at 8% and inflation at 1%. If policymakers take no action and allow the economy to self-adjust, which sequence of events will most likely occur?
Answer: Wages and input prices will fall, shifting aggregate supply rightward, reducing the price level and restoring full employment
In a recessionary gap with high unemployment, the long-run self-adjustment mechanism works through falling wages and input prices due to excess unemployment. This reduces production costs, shifting short-run aggregate supply (SRAS) rightward, which lowers the price level and increases real output until full employment is restored. Choice B describes the opposite scenario (inflationary gap adjustment). Choice C describes demand-side adjustment which is not the primary self-adjustment mechanism. Choice D describes fiscal policy intervention, not self-adjustment.
- Suppose an economy's natural rate of unemployment has permanently increased from 5% to 7% due to structural changes, but policymakers don't recognize this change and continue targeting 5% unemployment through expansionary policies. When they eventually stop intervening and allow self-adjustment, what will most likely occur?
Answer: Unemployment will rise to 7% while inflation rises as wages adjust upward from the artificially low level
If policymakers maintained unemployment below the new natural rate (7%) through expansionary policies, they created an inflationary gap. When intervention stops, unemployment must rise to the true natural rate of 7%. However, the previous expansionary policies likely pushed wages above equilibrium levels, so the adjustment involves continued wage increases and inflation as the economy moves to the new natural rate equilibrium. Choice A ignores that the natural rate has permanently changed. Choice B incorrectly suggests deflation. Choice D incorrectly suggests a compromise natural rate.
- Suppose an economy is operating above full employment with inflation at 6% annually. If the self-adjustment process is allowed to work without government intervention, what will be the most likely long-run outcome compared to the initial disequilibrium?
Answer: Higher price level, lower real GDP, and unemployment returning to the natural rate through rising nominal wages
In an inflationary gap, unemployment is below the natural rate, creating upward pressure on wages. Rising nominal wages increase production costs, shifting SRAS leftward. This raises the price level and reduces real GDP until the economy returns to full employment (natural rate of unemployment). The key is that wages rise, not fall, in this scenario. Choice A incorrectly states wages fall. Choice B describes recessionary gap adjustment. Choice D incorrectly suggests no change in price level or output.
- Which of the following scenarios would most likely halt the economy's automatic self-adjustment from a recessionary gap?
Answer: The widespread legal enforcement of multi-year labor contracts with fixed nominal wages.
The self-adjustment mechanism from a recessionary gap relies on high unemployment causing nominal wages to fall, which in turn shifts the SRAS curve to the right. If nominal wages are fixed by legally binding long-term contracts, they cannot fall in response to unemployment. This inflexibility would halt the adjustment mechanism, potentially leaving the economy stuck in the recessionary gap until a positive demand shock or other intervention occurs.
- An economy is experiencing an inflationary gap. During the process of long-run self-adjustment, what is the expected change in nominal wages, real wages, and the short-run aggregate supply (SRAS) curve?
Answer: Nominal wages rise, real wages are restored to their long-run level, and the SRAS curve shifts left.
In an inflationary gap, output is above potential and unemployment is low. The high demand for labor causes nominal wages to rise. This increase in labor costs shifts the SRAS curve to the left. As the SRAS curve shifts left, the price level rises. The process stops when the increase in nominal wages has matched the increase in the price level, restoring the original real wage and returning output to its potential level. The initial shock may have temporarily lowered real wages if prices rose unexpectedly, but the adjustment process restores them.
- An economy simultaneously experiences a negative supply shock (oil price increase) and a negative demand shock (reduced consumer confidence). If only self-adjustment occurs, which outcome is most likely in the long run compared to the pre-shock equilibrium?
Answer: Uncertain price level and same real GDP, as the adjustment restores full employment regardless of demand changes
When you encounter questions about simultaneous supply and demand shocks with self-adjustment, focus on two key principles: the long-run neutrality of demand shocks and the uncertainty created when opposing price pressures interact.
The correct answer is D because self-adjustment mechanisms work differently for supply versus demand shocks. The negative demand shock (reduced consumer confidence) temporarily reduces both price level and real GDP, but through self-adjustment—falling wages and prices—the economy returns to full employment at its natural rate of output. However, the negative supply shock (higher oil prices) shifts the long-run aggregate supply curve leftward, creating stagflation initially. The key insight is that while real GDP will return to its full-employment level through wage adjustments, the final price level depends on which shock dominates during the adjustment process, making it uncertain.
Choice A incorrectly assumes identical adjustment mechanisms. Supply shocks affect production costs permanently until prices adjust, while demand shocks primarily affect spending patterns. Choice B wrongly suggests the price effects perfectly cancel out—this would require the shocks to be exactly equal in magnitude, which isn't given. Choice C makes the error of assuming supply shocks have permanent real effects; in the long run, both supply and demand shocks are neutral with respect to real GDP, though they follow different adjustment paths.
Remember this pattern: in long-run self-adjustment questions, real GDP always returns to full employment, but when multiple shocks hit simultaneously, focus on whether you can definitively predict the final price level. Usually, you can't without knowing the relative magnitudes.
- An economy has been operating with unemployment above the natural rate for three years. Recently, economists observe that nominal wages have begun to decline and the price level is falling slowly. What does this suggest about the current phase of long-run adjustment?
Answer: The self-adjustment mechanism is working, but the economy is still in the middle of the adjustment process
When you encounter questions about long-run economic adjustment, focus on understanding the self-correction mechanism and recognizing which stage of the process the economy is experiencing based on the given indicators.
This scenario describes an economy with persistent unemployment above the natural rate, where nominal wages and prices have recently begun falling. This pattern indicates the self-adjustment mechanism is functioning properly. When unemployment exceeds the natural rate, there's downward pressure on wages as workers compete for scarce jobs. As wages fall, production costs decrease, leading to lower prices. This process gradually restores competitiveness and moves the economy back toward full employment equilibrium.
The key insight is timing: since wages have only "recently begun" to decline after three years of high unemployment, and prices are falling "slowly," the adjustment process is clearly underway but far from complete.
Choice A is wrong because there's no evidence of a deflationary spiral - the gradual price decline described here is part of normal adjustment, not an accelerating downward spiral. Choice B incorrectly suggests the process is nearly complete when the recent onset of wage declines indicates it's just gaining momentum. Choice C misinterprets the situation as a supply shock when the described wage and price movements are actually demand-side adjustments following the natural self-correction pattern.
The correct answer is D because the falling wages and prices confirm the self-adjustment mechanism is working, but the recent timing of these changes shows the economy is still in the middle of this lengthy process.
Study tip: Remember that self-adjustment takes time - look for timing clues in the question to determine what stage of adjustment the economy has reached.
- Consider an economy in a recessionary gap where the actual unemployment rate is significantly higher than the natural rate of unemployment. If nominal wages are downwardly sticky but not completely inflexible, which of the following is true about the long-run self-adjustment process?
Answer: The adjustment will occur, but it may be slow and prolonged due to resistance to nominal wage cuts.
The concept of "sticky wages" is central to the long-run self-adjustment model. While high unemployment creates pressure for nominal wages to fall, factors like labor contracts, morale, and minimum wage laws make them resistant to downward adjustment (downwardly sticky). Therefore, the rightward shift of the SRAS curve that closes the recessionary gap will still happen, but it is likely to be a much slower and more painful process than the upward adjustment of wages during an inflationary gap.
- An economy is in long-run equilibrium when inflationary expectations suddenly rise, even though there has been no change in aggregate demand or supply. In the absence of policy action, what is the most likely short-run and subsequent long-run adjustment?
Answer: SRAS shifts left, creating a recessionary gap; then, high unemployment causes wages to fall, shifting SRAS back to the right.
If workers and firms expect higher inflation, they will incorporate this into wage negotiations. Workers will demand higher nominal wages to protect their real purchasing power. This increase in labor costs shifts the SRAS curve to the left, causing stagflation (higher prices and lower output) in the short run. This creates a recessionary gap. The long-run adjustment to this gap would be that the resulting high unemployment puts downward pressure on nominal wages, which would eventually shift the SRAS curve back to its original position, assuming expectations eventually revert to normal.
- An economy is in a recessionary gap. As the economy self-adjusts, the price level falls. How does this falling price level affect the quantity of real GDP demanded?
Answer: It causes a movement down along the aggregate demand curve due to wealth and interest-rate effects.
The self-adjustment from a recessionary gap involves the SRAS curve shifting to the right, which causes the price level to fall. This falling price level leads to an increase in the quantity of real GDP demanded. This is represented as a movement down and to the right along a stationary aggregate demand curve. The reasons for this movement are the wealth effect (lower prices increase real purchasing power), the interest-rate effect (lower prices reduce money demand, lowering interest rates and boosting investment), and the foreign price effect.
- An economy experiences a permanent increase in productivity that shifts long-run aggregate supply rightward. Initially, this creates a recessionary gap. Which statement best describes the complete long-run self-adjustment process?
Answer: Wages will fall, SRAS shifts rightward, and the economy reaches new equilibrium with lower prices and higher output
When LRAS shifts rightward due to productivity gains, it initially creates a recessionary gap (current output is below new full employment level). The self-adjustment mechanism works as unemployment rises above the natural rate, causing wages to fall. This shifts SRAS rightward until it intersects AD at the new LRAS position, resulting in lower prices and higher output. Choice B describes adjustment back to original position, ignoring the permanent productivity increase. Choice C incorrectly involves automatic AD shifts. Choice D incorrectly suggests adjustment won't occur.
- Assume an economy is in long-run equilibrium. A severe, temporary disruption to supply chains increases production costs for most firms. After the initial shock, what happens during the subsequent long-run self-adjustment process, assuming the supply chain issues are eventually resolved?
Answer: The initial leftward shift in SRAS is reversed as high unemployment forces nominal wages down, but this is counteracted by the resolution of the supply chain issues, returning SRAS to its original position.
The initial supply chain disruption is a negative supply shock, shifting SRAS left, leading to stagflation (higher prices, lower output, higher unemployment). This creates a recessionary gap. The high unemployment puts downward pressure on nominal wages, which would start to shift the SRAS curve back to the right. Simultaneously, the problem is temporary, so as supply chains are resolved, production costs fall. Both forces (falling wages and resolving supply issues) work to shift the SRAS curve back to its original position, restoring the initial long-run equilibrium.
- An economy is in an inflationary gap. Which of the following correctly describes the state of the labor market and the resulting pressure on wages that drives the long-run adjustment?
Answer: There is a shortage of labor, putting upward pressure on nominal wages.
When you encounter questions about inflationary gaps, focus on the relationship between aggregate demand, labor markets, and the self-correcting mechanism that drives long-run adjustment.
An inflationary gap occurs when actual GDP exceeds potential GDP, meaning the economy is producing beyond its sustainable capacity. This happens when aggregate demand is too high relative to long-run aggregate supply. To produce this extra output, firms must employ more workers than the economy can sustainably support at the natural rate of unemployment.
This creates a labor shortage, as firms compete for workers in a tight labor market. When labor is scarce, employers bid against each other for workers, driving up nominal wages. These higher wages represent the market mechanism that eventually eliminates the inflationary gap by increasing production costs, shifting short-run aggregate supply leftward until the economy returns to potential GDP.
Option A is incorrect because a labor shortage, not surplus, exists when output exceeds potential. Option B contains a contradiction - while there is indeed a labor shortage, this puts upward pressure on wages, not downward pressure. The mention of "real wages" is also misleading since the initial pressure is on nominal wages. Option C is wrong because the labor market cannot be in equilibrium when the economy is producing beyond its sustainable capacity.
Remember this key pattern: inflationary gap → economy overheating → labor shortage → rising nominal wages → higher production costs → self-correction back to potential GDP. Labor market conditions always reflect whether the economy is above, at, or below its potential output.
