Well, you might say the appropriate comparison would be people in the same demographic category. I think that's not a proper economic model. The census of Canada is very clear to identify families as economic units. They call it “economic family”. The census data are collected in such a way that you can examine the economic interdependence of members of the family. When I comes to immigration, I think that to select certain streams, and measure their economic contribution only in terms of their own particular employment, is a conceptual mistake.
On October 25th, 2016. See this statement in context.