Indeed, to the extent that the environment in which we operate is more affected by the global output gap, and the global savings-investment balance, the speed with which monetary policy can achieve domestic goals inevitably becomes more dependent on others – on the success of authorities in other jurisdictions to also close their domestic output gaps; and on our collective ability to tackle the secular drivers of global saving and investment imbalances.
In a recent speech in Brussels I made a similar point regarding the interaction between monetary policy and other policies at the domestic level, such as fiscal and structural policies.