the real interest rate consistent with inflation stability and output at its natural level) is now at historically low, possibly negative, levels. Some possible explanatory factors are of a transitory nature (such as the still-ongoing deleveraging processes), while others are more structural ( i.e. low productivity growth and demographic factors). We have to deepen our analysis further in order to have a full grasp of this “new normal” reality. Implications for monetary policy:  New conventional? The question that arises is whether the “new normal” should lead to a “new conventional” for monetary policy. Indeed, inflation and real interest rates are likely to persist at a low level in the future, and therefore nominal interest rates will also be lower and hence closer to their effective lower bound, limiting their effectiveness as a monetary policy instrument, which will possibly lead to balance sheet management as a permanent policy. There are still no conclusive debates about balance sheet management, including on its marginal effectiveness, the optimal size of the balance sheet and the repercussions it could involve in terms of financial stability. Again, in this area, we need further analysis. 4/6   Once the conditions for it are met, the exit strategy from the accommodative policies will require gradualism and predictability. As the recovery gathers speed, and as long as this translates into a sustained adjustment in inflation towards its objective, the need for monetary policy support will tend to diminish.
The mandates of central banks are changing, as they are strengthening their macro-prudential powers and embracing more explicitly the objective of financial stability. Some major central banks have for the first time assumed the direct supervision of credit institutions. Thus, this period of changes is going to be a landmark in the history of central banking. The current overhaul of banking regulations globally is also fundamental by nature. The scale of reforms in the regulatory framework for the banking industry, after the collapse of Lehman Brothers and the outbreak of the euro area sovereign debt crisis, could be compared only with the major reforms undertaken in the aftermath of the Great Depression in the 1930s. The sheer magnitude of this changeover, however, does not guarantee the elimination, once and for all, of the regulatory gaps and loopholes for the risk taking activities of banks. Moreover, while the wide-ranging changes in banking regulation certainly improve banks’ capital, liquidity, operations and governance, they are sometimes feared to have a discouraging effect on banks’ lending and other services in the public interest. What caused the recent wave of banking reforms, what issues regulators still need to consider, and how are banks expected to respond on a global or national level?