When we're talking about the future, I don't think anybody knows what the accuracy will be. We'll only know when we get there. I would love to know who's going to win the hockey game tonight, as an example, right now so I could put money on the game, but we don't know.
These are all predictions. I think what we do provide in our report is what we call fan charts, so we have 16 years of history with the private sector and we've been using these private sector forecasts for that period of time, in fact, 16 to 17 years. What is our track record in terms of projecting nominal GDP one to five years out? What is our track record of hitting a budgetary balance one to five years out?
You could see we provide these confidence intervals and they're quite wide. Again, you folks have to make the decisions about is this the right plan. When it comes down to our forecasts, and the difference between, say, the PBO forecast, which is independent--it's our view--in our legislation you've asked us to provide an independent view, and it's our independent view.... How do we compare it to an average?
I think what's presented in the Department of Finance document, again, is an average of private sector forecasts. There are some below and there are some obviously higher. There's an arithmetic average. So there's probably some in our context.
I think Minister Flaherty and the Department of Finance officials quite rightly recognized that the number looked optimistic to them, so they put in some prudence. That prudence they put in on the forecast analogy represents something like $20 billion on the size of the economy, roughly about $1.7 trillion. We think it's probably an extra $20 billion, effectively, to give you a magnitude of that sense in terms of prudence.
I don't know that they're far off, and we don't really know with respect to the IMF and the OECD, and to be quite frank even the Bank of Canada, what they're calculated in terms of a fiscal drag factor for the budget. Again, the government didn't highlight that estimate in budget 2012. In some private sector forecasts, we're just getting this information now as to what they think the fiscal drag will be. I think most economists would agree that when you take that money out of the economy there will be some drag, just as they were saying quite rightly in times of stimulus that we needed the stimulus if the economy's operating below potential and it would have an impact on the economy that was positive.