Lars Christensen describes how NGDP targeting would help the global economy withstand shocks like another eurozone crisis:
Lets look at two different hypothetical US monetary policy settings. First what we could call an ‘adaptive’ monetary policy rule and second on a strict NGDP targeting rule.
‘Adaptive’ monetary policy – a recipe for disaster
By an adaptive monetary policy I mean a policy where the central bank will allow ‘outside’ factors to determine or at least greatly influence US monetary conditions and hence the Fed would not offset shocks to money velocity…..
In that sense under an ‘adaptive’ monetary policy the Fed is effective[ly] allowing external financial shocks to become a tightening of US monetary conditions. The consequence every time that this is happening is not only a negative shock to US economic activity, but also increased financial distress – as in 2008 and 2011.
NGDP targeting greatly increases global financial stability
If the Fed on the other hand pursues a strict NGDP level targeting regime the story is very different.
Lets again take the case of an European sovereign default. The shock again – initially – makes investors run for safe assets. That is causing the US dollar to strengthen, which is pushing down US money velocity (money demand is increasing relative to the money supply). However, as the Fed is operating a strict NGDP targeting regime it would ‘automatically’ offset the decrease in velocity by increasing the money base (and indirectly the money supply) to keep NGDP expectations ‘on track’. Under a futures based NGDP targeting regime this would be completely automatic and ‘market determined’.
Hence, a financial shock from an euro zone sovereign default would leave no major impact on US NGDP and therefore likely not on US prices and real economic activity…..
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