You're right. Overnight repos are a standard part of our operating framework. We haven't used them for some time. Really, the pandemic interrupted that because there were a number of extraordinary tools used. However, now things are getting more back to normal, so you're seeing us use this tool again.
As you suggested, we are seeing some tightness in overnight markets. There's probably more than one reason for that. One factor, which I think is a more global factor—we have been talking to other central banks, and they are seeing similar types of pressures—is that, as you're well aware, bond rates went up quite a bit in the last couple of years. More recently, they've started to come down as market participants expect that the central banks are winning the fight against inflation, so they're expecting that we will lower interest rates. That is spurring increased demand for those bonds because they want to buy them before interest rates come down further.
That has to be funded. Some of that funding is in the overnight market, so it's creating some upward pressure. As I responded to the previous question, we have been using overnight repos to keep the actual overnight rate in the market very close to our target overnight rate, which is the rate that we decide on when we make monetary policy decisions. Really, this is simply about implementing the monetary policy that's intended.