Maybe I'll turn to you on this, Dr. Kubursi. You were talking about the way the economic models work and trying to get the full costs, whether that's understanding the actual impact of government spending or the multiplier effect, which gets thrown around, it seems to me, loosely, and in quite a biased fashion.
Right now the government has an accelerated capital allowance for the tar sands. They say that we can write off, in a more accelerated fashion, for that project. How would your model apply to something like that industrial development if we were to try to include the full costs of what it is to have that type of energy produced in that manner?