European Central Bank to pump €1.1tn into eurozone
The European Central Bank is creating more than a €1.1tn which will be injected into the eurozone economy in a bid to revive it.
The technique, known as quantitative easing, had been widely expected and was used by Britain and the US after the global financial crash of 2008.
Some think it may prove ineffective, or have unintended consequences.
The BBC's economics editor Robert Peston reports from the World Economic Forum in Switzerland.