Contiene : 1. Monetary and fiscal remedies for deflation/ Alan J. Auerbach and Maurice obstfeld 2. Policy options in a liquidity trap/ Gauti B. Eggertsson 3. Exchange-rate policy and the zero bound on nominal interest rates/Gunter Coenen and volker 4. Conduting monetary policy at very low short-term interest/ Ben S. Bernanke and vincentt R.