CH6 - Measuring the Cost of Living Flashcards
Consumer Price Index (CPI)
-> measure of the overall cost of the goods and services bought by a typical consumer
-> basketful of goods that an urban family of four purchases on a regular basis
Deflation vs Disinflation
deflation is when inflation rates fall below zero + prices generally decline, disinflation is when the inflation rate falls but remains positive, prices continue to increase but at a slower rate
Core Inflation
excludes the most volatile components (prices changes are temporary) from the CPI basket of goods and services (fruit, vegetables, gasoline, fuel oil, natural gas, mortgage interest, intercity transportation, and tobacco products—19% of the CPI basket)
Useful in predicting the underlying trend of inflation as measures by changes in the CPI
5 problems in measuring the cost of living
1 - commodity substitution bias : prices don’t all change proportionately from y to y, people buy more of the less expensive substitution
2 - new goods bias : more variety of g -> less expensive
3 - unmeasured quality of change : quality can deteriorate or rise even if it costs the same
4 - outlet bias : discount retailers, large warehouse stores, internet shopping
5 - nobody is typical : students, seniors etc. all buy different things
how much CPI is overstated
0.5 percentage points per year
-> affects pension programs, social payments, wage settlements
CPP (Canada Pension Plan)
-> mandatory federal public pension plan for persons aged 18 and over who earn more than 3500$ a year
-> monthly retirement benefit is designed to replace up to 33% of the average person’s lifetime pre-retirement employment earnings, up to a maximum amount
OAS program
-> non-contributory, residence-based program, finances through general tax revenues, the objective of which is to ensure a minimum income to Canadians aged 65 and over
GDP Deflator vs CPI
1 - where G&S are produced (CPI includes imports)
2 - how various prices are weighted to yield a single number for the overall level of prices (CPI - fixed basket of goods, Deflator - currently produced G&S)
indexation
When some dollar amount is automatically corrected for inflation by law or contract, the amount is said to be indexed for inflation
-> Price indexes are used to correct for the effects of inflation when comparing dollar figures from different times
-> COLA cost-of-living-allowance = long-term contracts between firms and unions that include partial of complete indexation of the wage to the consumer price index
the law of one price
The notion that a good should sell for the same price in all markets