Price level : Deflation Flashcards
when does deflation occur?
Deflation occurs when there is a fall in the average price level of goods/services in an economy, as measured by the consumer price index (CPI)
Deflation only occurs when the percentage change in prices falls below zero %
what can cause deflation?
Deflation can be caused by either demand-side or supply-side factors
The two different causes of deflation have very different consequences for the economy
what is demand side deflations (bad deflation)
Demand-side deflation is caused by a fall in total (aggregate) demand in the economy
Aggregate demand is the sum of all expenditures in the economy as measured by the real gross domestic product (rGDP)
rGDP = Consumption (C) + Investment (I) + Government spending (G) + Net Exports (X-M)
If any of the four components of rGDP decrease, there will possibly be a decrease in aggregate demand in the economy, leading to a decrease in the general price level
Demand-side deflation has occurred
draw a demand side deflation diagram
diagram analysis
Diagram analysis
The initial macroeconomic equilibrium is at AP Y
Any factor which causes a reduction in one or more of the determinants of real GDP may cause the AD curve to shift left from AD1 → AD2
This shift causes a fall in average price levels from AP to AP1
The new macroeconomic equilibrium is now at AP1 Y1
Demand-side deflation has occurred
what are the consequences of demand side deflation?
government challenges
consumers lose confidence
debt
firms lose confidence
bankruptcies
exports
The Consequences of Demand-side Deflation-government challenges
With a decrease in output, fewer workers are required and so unemployment increases
Fiscal and monetary policy is less effective at combating deflation than inflation as consumers get into a habit of waiting for lower prices prior to making purchases
The Consequences of Demand-side Deflation-consumers lose confidence
With falling output and rising unemployment, households lose confidence choosing to save instead of spend
Consumption falls and rGDP reduces even more
Consumers delay purchasing goods/services as they believe prices will be cheaper in a few weeks or months
The Consequences of Demand-side Deflation-debt
Debt feels more burdensome as the value of any debt is worth more
The real cost of borrowing increases as real interest rates rise when the price level falls e.g. if interest rates are 1.5% and the inflation rate is –1.5%, then the real interest rate is 3%
The Consequences of Demand-side Deflation- firms lose confidence
Falling output and falling prices cause firms to lose confidence and so they delay investment, further reducing rGDP
The Consequences of Demand-side Deflation- bankruptcies
Falling output and falling prices reduce the profits of firms
Some firms will be unable to continue and will go out of business
The Consequences of Demand-side Deflation-
export
Persistently falling prices can prove attractive to foreigners and the level of exports may increase (this helps offset some of the reduction in rGDP)
how is supply side inflation caused ?
Supply-side deflation is caused by increases in the productive capacity of the economy
This is brought about by any increase in the quantity/quality of the factors of production
It effectively creates a condition of excess supply in the economy
Average price levels fall
National output (rGDP) increases
draw supply side deflation diagram
diagram analysis
Supply-side deflation is caused by increases in the productive capacity of the economy
This is brought about by any increase in the quantity/quality of the factors of production
It effectively creates a condition of excess supply in the economy
Average price levels fall
National output (rGDP) increases
The Consequences of Supply-side Deflation-what are the consequences of supply side deflation?
unemployment
consumers gain confidence
debt
firms gain confidence
exports
The Consequences of Supply-side Deflation-unemployment
With a decrease in costs, the output of firms increases. More workers are required and so unemployment falls