What is the deflationary gap in economics?
David Craig
Updated on March 18, 2026
What is the deflationary gap in economics?
Definition deflationary gap – This is the difference between the full employment level of output and actual output. For example, in a recession, the deflationary gap may be quite substantial, indicative of the high rates of unemployment and underused resources. A deflationary gap is also known as a negative output gap.
How would Keynesian economists respond to a recessionary gap?
The Keynesian response to a recessionary gap is for the government to reduce taxes or increase spending so that the aggregate expenditure function shifts up from AE0 to AE1. When this shift occurs, the new equilibrium E1 now occurs at potential GDP as shown in Figure 1(a).
How does Keynesian economics propose to solve economic problems?
Keynesian economics offers a solution to lack of spending: fiscal and monetary policies. Fiscal policy works because, according to Keynes, reduced aggregate demand causes financial crises, and government spending is part of aggregate demand.
How does deflationary gap occur?
A deflationary gap occurs when the actual real GDP is below its potential output. In this situation, some economic resources are underutilized, which in turn, creating a downward pressure on price level. This term is synonymous with the recessionary gap or the Okun gap.
What is deflationary gap example?
For example, deflationary gap is the amount by which aggregate demand must be increased to push the equilibrium level of income through the multiplier to the full employment level. In other words, if current national income is below full employment national income, a deflationary gap will arise.
What assumption of the Keynesian model gives rise to the elastic region of the Keynesian Aggregate Supply curve?
What assumption of the Keynesian model gives rise to the elastic region of the Keynesian aggregate supply curve? The potential for different levels of spare capacity in the long run.
What are the main points of Keynesian economics?
Keynes argued that inadequate overall demand could lead to prolonged periods of high unemployment. An economy’s output of goods and services is the sum of four components: consumption, investment, government purchases, and net exports (the difference between what a country sells to and buys from foreign countries).
What is the main idea of Keynesian economics?
Keynesian economics is a theory that says the government should increase demand to boost growth. 1 Keynesians believe consumer demand is the primary driving force in an economy. As a result, the theory supports the expansionary fiscal policy.
How would Keynes save our economy?
Keynes felt that countries should not run large trade surpluses or deficits. He would likely be in favor of lowering the value of the dollar to boost American exports, give our multinational corporations a competitive edge, and reduce the U.S. trade deficit.
What is Keynes economic theory on helping the economy recover from recessions and depressions?
The essential element of Keynesian economics is the idea the macroeconomy can be in disequilibrium (recession) for a considerable time. To help recover from a recession, Keynesian economics advocates higher government spending (financed by government borrowing) to kickstart an economy in a slump.
What is deflationary gap explain with diagram?
Draw a diagram showing deflationary gap. Deflationary gap. When aggregate demand is less than the level of output at full employment, then the deficiency or gap is called deflationary gap. It is a measure of the amount of deficiency in aggregate demand. Briefly, deflationary gap is synonym of deficient demand.
What is deflationary gap in economics?
Deflationary gap illustrates demand-deficient unemployment and occurs where there is an excess of AS over AD at the full employment level of income. So, in Figure 1 above, a level of income of Yfe is necessary to generate full employment, but the level of AD in the economy is only sufficient to generate a national income level of Y*.
Is the Keynesian AD/as model inflationary?
Syllabus: Discuss why, in contrast to the monetarist/new classical model, increases in aggregate demand in the Keynesian AD/AS model need not be inflationary, unless the economy is operating close to, or at, the level of full employment. If you would prefer to view this interaction in a new web window, then please follow the link below:
Why is there an inflationary gap at full employment?
In other words, because of full employment, output cannot increase to Y*. Thus at Y f level of full employment output, there occurs an inflationary gap to the extent of AB. The vertical distance between the aggregate demand and the 45° line at the full employment level of national income is termed the inflationary gap.
Is the inflationary gap on the real GDP axis?
The last point above has an inconsistency in that the Inflationary Gap is shown on the Price Level axis yet the definition suggests it is on the Real GDP axis. Below is a slightly more complex diagram and explanation that is more satisfactory: