MACRO - LS8 - Inflation Flashcards
Inflation definition
Persistent change in average price level of goods/services in an economy over a period of time
Two main ways of measuring inflation
Consumer price index (CPI)
Retail price index (RPI)
Survey given to measure inflation
Living costs and food survey - measures prices in different areas of the country and different shops
What is the difference between RPI & CPI
Retail price index tends to be higher then CPI
Why is there a difference between RPI & CPI
- RPI uses Carli Index (arithmetic mean) vs CPI using geometric mean - the difference in methods caused the RPI to be overstated, and the CPI is more accurate
- CPI excludes items relating to housing including mortgage interest rate payments and council taxes, included in RPI - these items tends to rise in price faster then other items
- RPI & CPI cover different sample populations - RPI excludes top 4% of income earners and low income pensioners on the basis they aren’t typical households
Redistribution effects
Inflation redistributes income away from certain groups and towards other groups
Some have an increase in PPP, some have a decrease
Groups who lose from inflation
- ppl who received fixed wages
- ppl who receive income/wages that increase less rapidly then inflation
- holders of cash
- savers
- lenders
Ppl who receive fixed wages
- when income is constant as general price level increases they become worse off - occurs when:
- wage contracts fixing wages over time period
- fixed pensions
- fixed rental income
- fixed welfare payments
ppl who receive income/wages that increase less rapidly then inflation
- when income doesn’t keep up with price level, real income falls and they become worse off
Holders of cash
As price level increases, real value/PP of cash falls
Savers
- in order to maintain real value, savers must receive the rest that’s equal to rate of inflation
- if not real value of savings fall
Lenders
- people who lend money may be worse off due to inflation
- if you lend money then there is an increase in price level, then money you get back will have fallen in real value
Groups who gain from inflation
- borrowers
- payers of fixed income/wages
- payers of income/wages that rise less rapidly then inflation
Borrowers
Pay back money that’s real value has fallen, makes you better off at the end of the loan period
Payers of fixed incomes/wages
As long as income is fixed, layers benefit as real value of payments fall due to inflation