4.2.3.3 inflation and deflation Flashcards
define inflation
and what’s the macroeconomic objective number?
rate of change in the average price level over time
also
- sustained increase in cost of living
- fall in the purchasing power of money
macroeconomic objective: inflation of 2%
RECAP
we can measure inflation with the consumer price index (CPI)
what is this?
- family expenditure survey carried out to judge average spending habits
- regularly updated, representative basket of goods
- attaches weights to items based on importance in people’s spending
what are some limitations of the CPI?
- households experience different rates of inflation
-> eg) 14% of households don’t own a car, spending patterns are different depending on number in the family etc - doesn’t recognise improvements in quality of goods and services
- slow to respond to new products
RECAP
what is CPIH?
CPI plus owner-occupier housing costs (the amount you would have to pay to rent a property) and council tax
RECAP
what is the retail price index (RPI)?
- includes mortgage interest repayments and Council Tax
- tends to be above the CPI
- excludes top and bottom 4% of the population
- discredited as a measure because mortgage payments distort the figure
-> been replaced by CPIH but is still used
what happens with demand-pull inflation?
from the demand side of the economy (AD)
- when AD is growing unsustainably, there’s pressure on resources
- producers increase their prices and earn more profits
- usually occurs when resources are fully employed
what are the main triggers for demand pull inflation?
- reduced taxation
- lower interest rates
- increased confidence
-> increases consumption and investment - income increases
- availability of credit
- weak exchange rates
-> will boost export growth + imports will be more expensive - fast growth in other countries
-> increase demand for UK exports
how do you illustrate demand pull inflation on a diagram and explain it?
in the short run, if D for goods and services rises faster than firms can provide additional supply
- prices are ‘pulled upwards’
what happens with cost-push inflation?
- this is from the supply side of the economy
- occurs when firms face rising costs
- firms respond to rising costs of production by increasing prices
what can cause cost push inflation?
1) changes in world commodity prices can affect domestic inflation
- eg) raw materials might become more ££ if oil prices rise
-> this increases costs of production
2) labour becomes more expensive
- could be through trade unions, for example
3) expectations of inflation
- if consumers expect prices to rise, they may ask for higher wages to make up for this
- this could trigger more inflation
4) indirect taxes could increase the cost of goods like cigs or fuel, if producers choose to pass the costs onto the consumer
5) depreciation in the exchange rate, which causes M to become more ££ and pushes up the price of raw materials
6) monopolies
- using their dominant market position to exploit consumers with high prices
7) higher taxes
- corporation, national insurance, waste disposal
how do you illustrate cost push inflation on a diagram?
what is the quantity theory of money?
if the growth of the money supply increases at a faster rate than national income - this leads to inflation
what do monetarists say about increases in prices?
are caused solely by increases in the money supply
what did Milton Friedman say about inflation?
‘inflation is always and everywhere a monetary phenomenon’
what is the fisher equation?
what do each of the four components stand for?
MV = PQ
M = money supply
V = velocity of circulation
- ie. how many times money circulates around the economy, no. of times it changes hands
P = average price level - inflation
Q = quantity of goods / services sold (real GDP)
- national income / output / expenditure
what do monetarists argue about V and Q?
argue that V and Q are constant (in terms of their impact on price)
what do M and V make up in the economy?
what method do they give us to work out nominal GDP?
expenditure / consumption side of the equation
- total money supply in the economy x velocity of circulation, amount of times we use that money
- therefore gives us the total amount of spending taking place in the economy
- so it = the expenditure method to get nominal GDP
what do P and Q make up in the economy?
what method do they give us for working out nominal GDP?
value of what’s sold in the economy
- quantity of goods and services sold in the economy x their current prices
- output method of calculating nominal GDP
why must MV always be equal to PQ?
- MV = what’s brought
- PV = has to be sold to someone
therefore the two have to be equal