Maple CPI

About

About Maple CPI

Maple CPI makes Canada's official inflation data legible in about three seconds — and still useful if you want to dig. It's a public, read-only dashboard: no accounts, no forecasts, no advice. Just the numbers Statistics Canada and the Bank of Canada publish, presented clearly.

Definitions

the words that show up everywhere else
Consumer Price Index The Consumer Price Index tracks the price of a fixed basket of goods and services a typical household buys, so a rising index means the cost of living is going up.
Contribution Each group's share of the headline inflation number, weighting its price change by how big a slice of the basket it is.
Year-over-yearYoY Year-over-year: how much prices changed compared with the same month last year. This is the headline inflation number.
Basket weight How much of a typical household budget goes to each group. Updated by Statistics Canada roughly once a year.
Month-over-monthMoM Month-over-month: how much prices changed from the previous month.
Policy rate The Bank of Canada's overnight target rate — the main lever it uses to keep inflation near its 2% target. Raising it cools the economy; cutting it stimulates.
Sources
Statistics Canada CPI series & basket weights — StatCan Table 18-10-0004, StatCan Table 18-10-0007.
Bank of Canada Policy rate, bank rate & benchmark bond yields — StatCan Table 10-10-0139, Bank of Canada Valet.
Notes

Year-over-year is value ÷ value 12 months ago − 1; a group's contribution weights its price change by its share of the basket, using the weight vintage in effect that month. The custom basket re-normalizes the selected groups' weights to 100% before averaging. These calculations are unit-tested.

Direction is shown by glyph, label and sign — never by a good/bad colour. Data refreshes each month after Statistics Canada's CPI release; coverage is Canada and the 10 provinces, 2001–present. Not investment advice.