Does Central Bank Independence Frustrate the Optimal Fiscal-Monetary Policy Mix in a Liquidity Trap? by Paul McCulley and Zoltan Pozsar published by Global Society of Fellows (3/2012).
“[T]he role of an independent central bank is different in inflationary and deflationary environments. In the face of inflation, which is often associated with excessive [government borrowing and] monetization of government debt, the virtue of an independence central bank is its ability to say “no” to the government. [In a liquidity trap], however, excessive [government borrowing] and money creation is unlikely to be the problem, and a more cooperative stance on the part of the central bank may be called for. Under the current circumstances [of a liquidity trap], greater cooperation for a time between the [monetary] and the fiscal authorities is in no way inconsistent with the independence of […] central bank[s], any more than cooperation between two independent nations in pursuit of a common objective [or, for that matter, cooperation between central banks and fiscal authorities to facilitate war finance] is consistent with the principle of national sovereignty.”
