I will add just a couple of brief comments on the tax gap.
We have done three studies, as the minister has said, including one on the GST and one on personal income tax. We did the personal income tax study earlier this year, in June, and we estimated that the gap was about $8.7 billion. We did a similar one for the GST. Our hope is to do a similar one in the future on the corporate side.
We are taking action. Indeed, in June we invited experts from around the world to come here to have a seminar on the tax gap, because this is not easy for people to calculate. All jurisdictions will tell you that. It's a complex calculation and a bunch of assumptions, but we feel that we can contribute by trying, while recognizing that there may be methodological issues. However, we'll be open about that, and we'll construct something.
The next step in our process here, as the minister indicated, is to do an international tax gap estimate in the coming year, in 2018, and that is even more complicated. I can tell you that right now no other country does that. We'll see how it goes. We are going to try it.
Sweden tried it a few years ago. They don't do one currently, because the methodology is even more difficult, but we are going to try to do it. We'll do the best we can, make whatever assumptions we have, and do that. Then we'll complete the domestic side.
We are making progress here, but we're doing it in a way that recognizes that it is not a simple calculation. We have to be careful with how we treat the numbers and that we put all the proper caveats on them.