I want to change gears and ask about the whole area of tax expenditures.
I know it's not the main focus of your presentation, but I am struck by the fact that we have this very involved process to examine and scrutinize spending by the government, and you've described much of that process. I'm also struck by the fact that the government could effectively deploy the same money for the same purposes through the tax system, and while the Department of Finance might put forward a report that covers some of those tax expenditures, they're not subject to the same sort of scrutiny. There isn't a whole committee like this one devoted to studying them.
I wonder if you could comment on whether there's an appropriate way of incorporating tax expenditures into this system of budgets and estimates, or whether you think they should be. Maybe there's a case that they shouldn't.