In April 2013 the Bank of Japan launched an unprecedented quantitative and qualitative monetary easing policy. It was thought that a 2% price stability target could be achieved within 2 years; 4 years on and we are still mission incomplete. Mission incomplete! This phrase neatly captures the progress made by the Bank of Japan (BOJ) in reflating the economy. In April 2013, the BOJ launched an unprecedented quantitative and qualitative monetary easing policy. The BOJ was certain that the 2% price stability target would be achieved within 2 years. About 4 years later, the BOJ lags behind other major central banks, with actual inflation and inflation expectations still well below 2%. What happened? And what should the BOJ do next? This former policy maker’s account expertly traces and analyzes the policy’s consequences.