Explanatory Notes — Trade by Industry
There are two modules in Trade Data Online. One that offers data on trade statistics by product and one that recompiles the trade by product data and reports it by industry.
The primary purpose for the recompilation by industry is to provide a basis for estimating the apparent domestic market for a collection of fabricated goods by combining manufacturing production data with trade data. It should be noted that this type of data integration carries with it a number of potential pitfalls and important limitations.
As explained in the section Types of Trade Statistics, the numbers reported in Trade Data Online cover only merchandise trade clearing customs. Thus, there is no information on Trade in Services on this site.
Industries are classified according to the North American Industry Classification System (NAICS). Because only merchandise trade is covered, there will be data only for the goods-producing industries in the Trade by Industry module. For instance:
- Trade of automotive vehicles or boats will be reported under the industry code for "Transportation Equipment Manufacturing" and not under the code for "Transportation" (since the latter basically regroups only transportation services).
- Similarly, information on imports or exports of computers will be classified under "Computer and Electronic Product Manufacturing" and not under any code in the "Information and Cultural Industries" sector.
The Trade by Product module offers data on both Canadian and U.S. trade with other countries. On the other hand, the Trade by Industry module covers only Canadian international trade. Canadian data is provided by Statistics Canada's International Trade Division.
A very small amount of trade is associated with industries beyond "NAICS 31-33: Manufacturing" in the NAICS classification. An example is trade of "human hair" which is gathered from barbershops and hair stylists. Others include some artwork or cinematographic film associated with cultural industries.
Also, a few establishments which engage in both manufacturing and wholesaling activities may one year fall into Manufacturing and show up in "Wholesale" the next (depending on the share of revenues each activity brings). Accordingly, some of the manufactured products may from time to time be classified under a NAICS code in the "Wholesale" sector.
For technical reasons and simplicity, these items are not reported on an industry basis. The result is that if the numbers for all the individual good-producing industries are added, the total will not quite equal the results for "Total - All Industries". These exceptions account for the small difference.
Rate this page
The content of this page was useful to me.
- Date modified: