Olli Rehn, Governor of the Bank of Finland, in this speech quotes Rawls to justify low for long interest rate policy of central banks:
In the euro area, national policies determine labour market outcomes. However, monetary policy can support full employment without prejudice to price stability. In the presence of a flattened Phillips curve, policies aiming at full employment are likely to have a moderate inflationary impact in the short term. Under such circumstances, monetary policy can also help us get closer to full employment.
In fact, considerations about labour-income and wealth inequality strengthen the case for a “lower for longer” strategy, when monetary policy is constrained by the effective lower bound. This is to my understanding in line with considerations that featured prominently in the Federal Reserve’s recent framework review and have contributed also to the new ECB monetary policy strategy, of which President Christine Lagarde informed the public earlier today.
So, let me ask, on the basis of these reflections: what should one as a central banker think about inequality and inclusive growth in the making of monetary policy? In my view, the philosophy of John Rawls is a most helpful guide here. One of his key insights, or one of his three principles of a just society, is that inequalities are acceptable only in case that they benefit the less well-off members of the society.
That is by no means a carte blanche for e.g. advocating tax cuts that benefit the richest or believing in some trickle-down theory of economic growth. But it implies that as the main impact of monetary policy in the proximity of effective lower bound has been to raise output and employment, and thus reduce income inequality by helping create millions of jobs and enhance the income of the previously unemployed and other less well-off members of the society, even if it had limited negative side-effects on wealth inequality, then the policy has been in line with the pursuit of a just society.
Linking Rawlsian thinking to monetary policy is interesting…