Complaining about the effect of Japan’s monetary easing on the value of the yen is virtually de rigeur among the country’s trading partners. But Chart of the week shows that the most vocal critics of Japan are not necessarily those with the most to shout about. 

How have emerging market currencies fared at the start of the year compared with 2012? Foreign currency investors say that the grip of so-called risk on, risk off trading has faded this year and that fundamental reasons for buying or selling a currency are dominating investment choice.

But the rise of currency wars is also playing a major role in determining which currencies rise or fall, as investors respond to rhetoric from central bankers and place bets on which countries are most likely to take action to weaken their currency this year. Chart of the week takes a closer look.