Also, “Commentary on Policy at the Zero Lower Bound”. (2010) CEPS Working Paper No. 201. And S. Schmitt-Grohé and M. Uribe, 2014. “Liquidity Traps: An Interest-Rate-Based Exit Strategy”, The Manchester School, 82, S1, September 2014, 1–14. 8  See W. Buiter, 2009. “Negative Nominal Interest Rates: Three ways to overcome the zero lower bound”, NBER Working Paper, No. 15118, and K. Rogoff, 2014.
“Costs and Benefits to Phasing Out Paper Currency”, presented at the NBER Macroeconomics Annual Conference, 11 April. BIS central bankers’ speeches  5  already perceive a negative nominal interest rate on deposits as an unfair wealth tax and extending it to cash would deepen this perception and affect even more vulnerable members of our society.