inflation, deflation, disinflation Flashcards
inflation
a sustained rise in the general price level over time. this means that the cost of living increases and the purchasing power of money decreases
deflation
the opposite of inflation, where the average price level in the economy falls.
there is a negative inflation rate
disinflation
the falling rate of inflation.
this is when the average price level is still rising, but to a slower extent. this means goods and services are relatively cheaper now than a year ago, and the purchasing power of money has increased
inflation objectives
-aim to keep inflation low and stable
-inflation target at 2%.
this aims to provide price stability for firms and consumers and helps them make decisions in the long run.
-price stability is measured with consumer price index (CPI)
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hyperinflation
when the rate of inflation is high and accelerating to the extent that it is out of control.
-growth of the money supply could cause this ( if bank of england printed more money, there would be more money flowing in the economy)
calculating the inflation rate in the uk
-CPI is calculated by measuring the change in the value of a basket of goods and services.
-it measures household purchasing power with the family expenditure survey- it finds out what consumers spend their income on.
>from this a basket of good is created
>the goods are weighed according to how much income is spent on each item
limitations of CPI when measuring inflation
- the basket of goods is only representative of the average household.
- hard to make historical comparisons since technology twenty years ago was different
- different demographics have different spending patterns
- CPI is slow to respond to new goods and services, even though it is updated regularly
retail price index (RPI)
- alternative measure of inflation
-unlike CPI, RPI includes housing costs, such as payments on mortgage interest & council tax - this more accurately reflects the cost of living.
-tends to have a higher value than CPI due to the inclusion of housing costs
-has been used for much longer than CPI, makes it better for comparisons over time
-it is unique to the uk, not consistent with the european central banks inflation measurement like the CPI is.
therefore CPI is more accurate for making comparisons between european countries
calculating using index numbers
-used to make comparisons between years and to measure the magnitude of change over time.
>pick a base year (always has an index value of 100)
>raw number/ base year raw number x 100
-to make comparisons use percentage change of the index number
>%change= difference/original x 100
causes of inflation
- demand pull
- cost push
demand pull inflation
- this is from the demand side of the economy.
- when AD is growing unsustainably, there is pressure on resources.
- producers increase their prices and earn more profit.
- usually occurs when resources are fully employed
triggers for demand pull inflation
-a depreciation in the exchange rate, which causes:
>imports to become more expensive
>exports to become more cheaper,
this causes AD to rise
- fiscal stimulus in the form of lower taxes or more government spending. this means consumers have more disposable income, so consumer spending increases.
- lower interest rates makes saving less attractive and borrowing more attractive, consumer spending increases.
- high growth in uk exports markets means uk exports increase & AD increases
demand pull inflation diagram
- AD increases from AD to AD1
- prices increase from P to P1
- SRAS stays the same
cost push inflation
-from the supply side of the economy, and occurs when firms face rising costs
cost push inflation happens when…
- raw materials become more expensive.
e. g. when oil prices rise - labour becomes more expensive. this could be through trade unions
- expectations of inflation. if consumers expect prices to rise, may ask for higher wages to make up for this. this will trigger more inflation
- indirect taxes could increase the cost of goods such as cigarettes/fuel, if producers choose to pass the costs onto consumers
- depreciation in the exchange rate, which causes imports to become more expensive, which pushes up the price of raw materials
- monopolies using their dominant market position to exploit consumers with high prices