It's an interesting question to try to take apart, and it would be interesting to listen to some academics grapple with that concept. At the outset, I would observe that quite a number of these sub-sectors are finding a capacity to export, so in that respect, it would account for it being a primary employer. So the architect who specializes in green who sells into Shanghai, that's primary, I think, in your analogy. But if you were just designing a building for Manulife, maybe that's secondary. I think there is, in fact, a growing capability, and there is growing evidence that in Canada it is primary.
The fundamentals of the question are interesting, because I would argue that, more and more, the determinants of success for your manufacturing, your goods and services, come out of the service sector, whether it's informatics or whether it's design and engineering.
So they're secondary in the purest sense, but boy oh boy they're integrated with regard to the success factors for your goods-producing sector. While I think it's interesting in an academic sense, I'm not sure where we end up at the end of it. Still, I'm fascinated by the notion.