Back in 1998 I argued that the Bank of Japan needed to find a way to “credibly promise to be irresponsible.” That didn’t go down too well, but it was what sober, careful economic analysis prescribed.

Or as I said in the linked paper,

The whole subject of the liquidity trap has a sort of Alice-through-the-looking-glass quality. Virtues like saving, or a central bank known to be strongly committed to price stability, become vices; to get out of the trap a country must loosen its belt, persuade its citizens to forget about the future, and convince the private sector that the government and central bank aren’t as serious and austere as they seem.

Macro policy in a liquidity trap (wonkish) – Paul Krugman Blog – NYTimes.com.