Information identified as archived is provided for reference, research or recordkeeping purposes. It is not subject to the Government of Canada Web Standards and has not been altered or updated since it was archived. Please "contact us" to request a format other than those available.
Merchandise trade is one component of Canada's international balance of payments, which also includes trade in services, investment income, current transfers as well as capital and financial flows.
International merchandise trade data by country are available on both a balance of payments and a customs basis for the United States, Japan and the United Kingdom. Trade data for all other individual countries are available on a customs basis only. Balance of payments data are derived from customs data by making adjustments for characteristics such as valuation, coverage, timing and residency. These adjustments are made to conform to the concepts and definitions of the Canadian System of National Accounts.
Constant dollars referred to in the text are calculated using the Laspeyres volume formula.
In general, merchandise trade data are revised on an ongoing basis for each month of the current year. Current year revisions are reflected in both the customs and balance of payments based data. Revisions to customs based data for the previous year are released on a quarterly basis. Revisions to balance of payments based data for the three previous years are released annually in June.
Factors influencing revisions include late receipt of import and export documentation, incorrect information on customs forms, replacement of estimates with actual figures, changes in classification of merchandise based on more current information, and changes to seasonal adjustment factors.
Revised data are available in the appropriate CANSIM tables.