Demand pull inflation
Encyclopedia
Aggregate demand
In macroeconomics, aggregate demand is the total demand for final goods and services in the economy at a given time and price level. It is the amount of goods and services in the economy that will be purchased at all possible price levels. This is the demand for the gross domestic product of a...
in an economy outpaces aggregate supply
Aggregate supply
In economics, aggregate supply is the total supply of goods and services that firms in a national economy plan on selling during a specific time period...
. It involves inflation
Inflation
In economics, inflation is a rise in the general level of prices of goods and services in an economy over a period of time.When the general price level rises, each unit of currency buys fewer goods and services. Consequently, inflation also reflects an erosion in the purchasing power of money – a...
rising as real gross domestic product
Gross domestic product
Gross domestic product refers to the market value of all final goods and services produced within a country in a given period. GDP per capita is often considered an indicator of a country's standard of living....
rises and unemployment
Unemployment
Unemployment , as defined by the International Labour Organization, occurs when people are without jobs and they have actively sought work within the past four weeks...
falls, as the economy moves along the Phillips curve
Phillips curve
In economics, the Phillips curve is a historical inverse relationship between the rate of unemployment and the rate of inflation in an economy. Stated simply, the lower the unemployment in an economy, the higher the rate of inflation...
. This is commonly described as "too much money chasing too few goods". More accurately, it should be described as involving "too much money spent chasing too few goods", since only money that is spent on goods and services can cause inflation. This would not be expected to persist over time due to increases in supply
Supply (economics)
In economics, supply is the amount of some product producers are willing and able to sell at a given price all other factors being held constant. Usually, supply is plotted as a supply curve showing the relationship of price to the amount of product businesses are willing to sell.In economics the...
, unless the economy is already at a full employment
Full employment
In macroeconomics, full employment is a condition of the national economy, where all or nearly all persons willing and able to work at the prevailing wages and working conditions are able to do so....
level.
The term demand-pull inflation is mostly associated with Keynesian economics
Keynesian economics
Keynesian economics is a school of macroeconomic thought based on the ideas of 20th-century English economist John Maynard Keynes.Keynesian economics argues that private sector decisions sometimes lead to inefficient macroeconomic outcomes and, therefore, advocates active policy responses by the...
.
How it happens
According to Keynesian theory, the more firms will employ people, the more people are employed, and the higher aggregate demandAggregate demand
In macroeconomics, aggregate demand is the total demand for final goods and services in the economy at a given time and price level. It is the amount of goods and services in the economy that will be purchased at all possible price levels. This is the demand for the gross domestic product of a...
(AD) will become. This greater demand will make firms employ more people in order to output more. Due to capacity constraints, this increase in output will eventually become so small that the price of the good will rise.
At first, unemployment will go down, shifting AD1 to AD2, which increases demand (noted as "Y") by (Y2 - Y1). This increase in demand means more workers are needed, and then AD will be shifted from AD2 to AD3, but this time much less is produced than in the previous shift, but the price level has risen from P2 to P3, a much higher increase in price than in the previous shift.
This increase in price is called inflation
Inflation
In economics, inflation is a rise in the general level of prices of goods and services in an economy over a period of time.When the general price level rises, each unit of currency buys fewer goods and services. Consequently, inflation also reflects an erosion in the purchasing power of money – a...
.
External links
- Theory 1 - Demand-pull inflation - is inflation demanding?, Bank of Biz/ed