Prices Analytical Series
Technical Supplement for the September 2020 Consumer Price Index

Release date: October 21, 2020

Beginning in April 2020, the collection and compilation of the Consumer Price Index (CPI) have been impacted by measures designed to limit the spread of COVID-19, as in-person field collection was conducted remotely, and imputation strategies were required to address an increased number of temporary business closures and out-of-stock products. These strategies were implemented according to international guidelines, and following consultation with other national statistical organizations.

Where outlets remained temporarily closed, items were out of stock at a higher rate than usual or products and services remained unavailable for consumption, the imputation treatments for the September CPI were the same as those used in April through August.Note 1

Tables reflecting product and outlet availability (Table 1), imputation donors for unavailable products and services (Table 2) and CPI sub-components with an out-of-stock rate above 30% (Table 3) have been updated to reflect September data.


Table 1
Consumer Price Index product and outlet availability, field, scanner and web scraped data collection modes, September 2020 and September 2019
Table summary
This table displays the results of Consumer Price Index product and outlet availability Basket weight at link month (%), Average rate of out of stock product offerings (%), Average rate of temporarily closed outlets (%), Average rate of prices received as scheduled (%) and September, calculated using 2020 and 2019 units of measure (appearing as column headers).
Basket weight at link month (%) Average rate of out of stock product offerings (%) Average rate of temporarily closed outlets (%) Average rate of prices received as scheduled (%)
September
2020 2019 2020 2019 2020 2019
Total 100.00 11.0 5.3 1.3 0.2 87.8 94.5
Food and non-alcoholic beverages 16.48 9.4 1.7 0.4 0.0 90.2 98.3
Shelter 27.36 7.5 3.9 0.5 0.2 92.0 96.0
Household operations, furnishings and equipment 12.80 14.3 4.3 0.8 0.1 84.8 95.7
Clothing and footwear 5.17 13.5 20.7 4.1 0.4 82.4 79.0
Transportation 19.95 0.0 0.0 0.0 0.0 100.0 100.0
Health and personal care 4.79 20.9 2.6 3.4 0.6 75.7 96.8
Recreation, education and reading 10.24 7.7 6.2 1.5 0.4 90.8 93.5
Alcoholic beverages, tobacco products and recreational cannabis 3.21 7.4 2.9 3.4 0.2 89.2 97.0

Table 2
Imputation donors for select products and services unavailable, or partially unavailable for consumption in July, August and September 2020Table 2 Note 1
Table summary
This table displays the results of Imputation donors for select products and services unavailable Transportation and Recreation, education and reading, calculated using Air transportation, Recreational services, Travel tours, Spectator entertainment (excluding video and audio subscription services), July 2020, August 2020 and September 2020 units of measure (appearing as column headers).
Transportation Recreation, education and reading
Air transportation Recreational services Travel tours Spectator entertainment (excluding video and audio subscription services)
July 2020
Affected sub-component basket weight at link month (%) 0.35 0.13 1.21 0.27
Imputation donor Affected sub-components imputed from parent, air transportation All-items All-items All-items
Affected geography All All All All
August 2020
Affected sub-component basket weight at link month (%) 0.35 0.13 1.21 0.26
Imputation donor Affected sub-components imputed from parent, air transportation All-items All-items All-items
Affected geography All All All All
September 2020
Affected sub-component basket weight at link month (%) 0.35 0.13 1.21 0.26
Imputation donor Affected sub-components imputed from parent, air transportation All-items All-items All-items
Affected geography All All All All

Table 3
CPI sub-components with an out-of-stock rate above 30%, September 2020
Table summary
This table displays the results of CPI sub-components with an out-of-stock rate above 30%. The information is grouped by Sub-component (appearing as row headers), Basket weight at link month (%) (appearing as column headers).
Sub-component Basket weight at link month (%)
Eye care goods 0.32
Non-prescribed medicines 0.46
Other fresh or frozen poultry 0.11

Additional questions about how the CPI accounts for outlets remaining temporarily closed, items out of stock at a higher rate than usual, or products and services remaining unavailable for consumption due to COVID-19, can be directed to statcan.cpddisseminationunit-dpcunitedediffusion.statcan@canada.ca.


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