I am not quite sure how big the impact of it is on inflation. I thought even before, banks could just go and take cash from federal reserve (borrow), essentially unlimited amount and that counted as reserve. So, from practical point of view, if they saw that they can lend the money with foot risk/benefit profile, they could always do that. And they would not have to pay rate for the money which is in reserve. So, not quite sure if inflation depends on this much.