13  See Fahr, S., R. Motto, M. Rostagno, F. Smets and O. Tristani, “A monetary policy strategy in good and bad times: lessons from the recent past”, Economic Policy, Volume 28, Issue 74, 1 April 2013, pp. 243–288. 14  De Groot, O., “The Risk Channel of Monetary Policy”, International Journal of Central Banking, Volume 10, No. 2, June 2014, pp. 115–159.
15  L. Christiano, C. Ilut, R. Motto and M. Rostagno, “Monetary Policy and Stock Market Booms”, paper prepared for Macroeconomic Challenges: the Decade Ahead, A Symposium Sponsored by the Federal Reserve Bank of Kansas City Jackson Hole, Wyoming August 26 – 28, 2010. 4  BIS central bankers’ speeches  instability.