Sunday we got some bad news, which many wrongly will see as good news – this is from Reuters:

China and the United States on Sunday committed anew to refrain from competitive currency devaluations, and China said it would continue an orderly transition to a market-oriented exchange rate for the yuan CNY=CFXS.

…Both countries said they would “refrain from competitive devaluations and not target exchange rates for competitive purposes”, the fact sheet said.

Meanwhile, China would “continue an orderly transition to a market-determined exchange rate, enhancing two-way flexibility. China stresses that there is no basis for a sustained depreciation of the RMB (yuan). Both sides recognize the importance of clear policy communication.”

There is really nothing to celebrate here. The fact is that in a world where the largest and most important central banks in the world – including the Federal Reserve – continue to undershoot their inflation targets and where deflation remains a real threat any attempt – including using the exchange rate channel – to increase inflation expectations should be welcomed.

This of course is particularly important in a world where the ‘natural interest rate’ likely is quite close to zero and where policy rates are stuck very close to the Zero Lower Bound (ZLB). In such a world the exchange rate can be a highly useful instrument to curb deflationary pressures – as forcefully argued by for example Lars E. O. Svensson and Bennett McCallum.

In fact by agreeing not to use the exchange rate as a channel for easing monetary conditions the two most important ‘monetary superpowers’ in the world are sending a signal to the world that they are in fact not fully committed to fight deflationary pressures. That certainly is bad news – particularly because especially the Fed seems bewildered about conducting monetary policy in the present environment.

Furthermore, I am concerned that the Japanese government is in on this deal – at least indirectly – and that is why the Bank of Japan over the last couple of quarters seems to have allowed the yen to get significantly stronger, which effective has undermined BoJ chief Kuroda’s effort to hit BoJ’s 2% inflation target.

A couple of months ago we also got a very strong signal from ECB chief Mario Draghi that “competitive devaluations” should be avoided. Therefore there seems to be a broad consensus among the ‘Global Monetary Superpowers’ that currency fluctuation should be limited and that the exchange rate channel should not be used to fight devaluation pressures.

This in my view is extremely ill-advised and in this regard it should be noted that monetary easing if it leads to a weakening of the currency is not a beggar-thy-neighbour policy as it often wrongly is argued (see my arguments about this here).

Rather it could be a very effective way of increase inflationary expectations and that is exactly what we need now in a situation where central banks are struggling to figure out how to conduct monetary policy when interest rates are close the ZLB.

See some of my earlier posts on ‘currency war’/’competitive devaluations’ here:

Bernanke knows why ‘currency war’ is good news – US lawmakers don’t

‘The Myth of Currency War’

Don’t tell me the ‘currency war’ is bad for European exports – the one graph version

The New York Times joins the ‘currency war worriers’ – that is a mistake

The exchange rate fallacy: Currency war or a race to save the global economy?

Is monetary easing (devaluation) a hostile act?

Fiscal devaluation – a terrible idea that will never work

Mises was clueless about the effects of devaluation

Exchange rates and monetary policy – it’s not about competitiveness: Some Argentine lessons

The luck of the ‘Scandies’