That is consistent with what you said, Governor, when you mentioned that it should be reserved primarily for use at the zero lower bound. We're not far from that at this point with the uncertainty of the economy. Some countries are still using forward guidance, but they used it at a time when they were not at the zero lower bound. I'm thinking about New Zealand or Sweden, for example.
Have you done an analysis of the way the tool has worked in those countries and in that specific time?