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October 16, 2021 

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ADJUSTMENT, LONG-RUN AGGREGATE MARKET: Disequilibrium in the long-run aggregate market induces changes in the price level that restore equilibrium. If the price level is above the long-run equilibrium price level, economy-wide product market surpluses cause the price level to fall. If the price level is below the long-run equilibrium price level, economy-wide product market shortages cause the price level to rise. In both cases long-run equilibrium is restored. Price level changes induce changes in aggregate expenditures but NOT changes in real production. The reason is that long-run aggregate supply is full-employment real production, which is unaffected by the price level.

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INFLATIONARY GAP:

The difference between the equilibrium real production achieved in the short-run aggregate market and full-employment real production that occurs when short-run equilibrium real production is more than full-employment real production. An inflationary gap, also termed an expansionary gap, is associated with a business-cycle expansion, especially the latter stages of an expansion. This is one of two alternative output gaps that can occur when short-run equilibrium generates production that differs from full employment. The other is a recessionary gap.
An inflationary gap is a key facet of macroeconomics, especially the analysis of business cycles and the problem of inflation that perpetually puzzles political leaders. Inflation is the prime problem that emerges during the latter stages of a business-cycle expansion which corresponds to an inflationary gap in the aggregate market.

Inflationary Gap
Inflationary Gap

The aggregate market presented in the graph to the right can provide an understanding of an inflationary gap. The vertical long-run aggregate supply curve, labeled LRAS, marks full-employment real production. Long-run equilibrium in the aggregate market necessarily results in full-employment real production.

The positively-sloped short-run aggregate supply curve is labeled SRAS. Short-run equilibrium in the aggregate market occurs at the price level and real production corresponding to the intersection of the aggregate demand curve and this SRAS curve. Should short-run real production exceed full-employment real production, then an inflationary gap results. However, to identify an inflationary gap an aggregate demand curve needs to be added to the graph.

To include the aggregate demand curve and illustrate an inflationary gap for this aggregate market, click the [Inflationary Gap] button. Doing so reveals a short-run equilibrium level of real production that is greater than full employment, which is an inflationary situation. Note that the aggregate demand curve, labeled AD, intersects the SRAS curve at a real production level to the right of the LRAS curve. This means the short-run real production is greater than full-employment real production. The difference between short-run equilibrium real production and full-employment real production is the inflationary gap.

The basic reason for the emergence of an inflationary gap is a short-run imbalance between resource prices, especially wages, and the price level. With real resource prices out of balance, labor and other resources are enticed to exceed their full-employment levels, which prompts subsequent increases in wages and prices, and hence inflation.

The primary problem associated with an inflationary gap is, of course, inflation. This tends to reduce the purchasing power of financial assets and can cause the haphazard redistribution of income and wealth. To avoid these problems of inflation, government often considers alternative stabilization policies to correct the situation, including contractionary monetary and fiscal policies. The intent of such policies is to decrease the short-run real production level and move it back to the long-run full-employment level of real production.

An inflationary gap also sets in motion the self-correction adjustment mechanism of the aggregate market. Resource market imbalances, in this case shortages that generate overemployment, trigger resource price increases that cause the short-run aggregate supply curve to shift leftward. This shift also decreases short-run real production and moves it toward the full-employment level of real production.

<= INFLATIONARY EXPECTATIONS, AGGREGATE EXPENDITURES DETERMINANTINFLATIONARY GAP, KEYNESIAN MODEL =>


Recommended Citation:

INFLATIONARY GAP, AmosWEB Encyclonomic WEB*pedia, http://www.AmosWEB.com, AmosWEB LLC, 2000-2021. [Accessed: October 16, 2021].


Check Out These Related Terms...

     | output gaps | recessionary gap | aggregate market shocks | self correction, aggregate market | equilibrium, short-run aggregate market | equilibrium, long-run aggregate market | disequilibrium, short-run aggregate market | equilibrium, aggregate market |


Or For A Little Background...

     | aggregate market analysis | short-run aggregate market | long-run aggregate market | aggregate demand | aggregate supply | aggregate expenditures | aggregate demand curve | long-run aggregate supply curve | full employment | business cycles | expansion | inflation |


And For Further Study...

     | self correction, recessionary gap | self correction, inflationary gap | Keynesian economics | monetary economics | classical economics | aggregate supply increase, short-run aggregate market | aggregate supply decrease, short-run aggregate market |


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