Thank you for your question.
What we call the “prevailing wage”, the wage that Canadians would be paid in that occupation, is an average based on a variety of data sources. We draw data from EI databases to identify wages that Canadians are paid in that occupation. We look at employer surveys. We look at provincial wage surveys as well. Both Alberta and B.C. have extensive information on wages that are paid for a variety of occupations. In some instances we'll go so far as to do surveys of competitors in a particular region to determine what people in that occupation are being paid.