It's difficult for us to determine any other rate than the overnight rate that works through the transition mechanism, but the point you're making is that, because people might be trapped in a sense with the lender, they may get a less favourable rate than if they could switch. There are a number of mechanisms that even existing lenders can use to ease the transition, including changing the adjustment period. According to the work we've done, there will still be people who, at the time of renewal—say, in 2019 if you had a five-year fixed mortgage in 2014—in fact won't see a very large increase in their debt service ratio. Some will, if they're already highly indebted.
From an overall macroeconomic point of view, we know that it's a difficult transition, but we take that differential impact into account—depending on how indebted you are, when you had your mortgage and when you need to renew your mortgage—when we make our decisions for interest rates. We don't just look at the average when it comes to what banks actually do. That's a question for the design of the policy, which is not our responsibility.