摘要：When conventional monetary policies come close to their limit, centralbanks can provide additional easing with unconventional policies. The international experience has been largely positive. Costs associatedwith these measures could, however, rise with extensive and prolongeduse. When used simultaneously, unconventional measures can often bemutually reinforcing but can also lower the effectiveness of individualmeasures in some cases. Another challenge major central banks need to carefully plan for, manageand communicate is how and when to exit from such measures.
