With the return of financial stability objective to central banks, along with additional tools in the form of either micro-prudential regulation/supervision 2  BIS central bankers’ speeches  or macro-prudential regulation, or both, central banks have to deal with any apparent conflicts between price stability and financial stability objectives, while aiming generally to maximize the complementarities and synergies between the two.
Besides the monetary policy response to the crisis, the fiscal stimulus used across countries to bailout the financial systems and to support economic growth has led to large build up of sovereign debt, and in some countries the levels look unsustainable.