“I think it’s going to be hard to push the Fed Funds rate below negative 1. That’s going to be difficult. People can basically take out cash and put it in a vault and they get a zero return on it. This is supporting the ban on cash rhetoric. This is a huge social debate that we should start having. One way of doing it is to ban cash. Banning cash is a social and political debate, which is going to happen increasingly. As long as we have cash, we can’t have rates of much below negative 1 percent.”
http://www.theepochtimes.com/n3/1974891-cash-ban-would-boost-effect-of-negative-rates/
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