But, since the global financial crisis, the need to revive and sustain economic growth in the US, the United Kingdom, and Japan – and to avoid financial collapse in the eurozone – has prompted major central banks to be more outspoken and pursue more aggressive monetary policies, including unconventional measures like quantitative easing (QE). As a result, many central bankers have become household names; some even have tabloid nicknames, like “super Mario” Draghi.