Japan's move of depreciating the Yen has already raised concerns of currency wars getting escalated. What is more, a substantial policy gap has emerged between the Euro and the Yen. As a result of which currency investors are looking to profit handsomely from it. The most popular trade in the currency markets has been buying the Euro and selling the Yen. That explains why the Euro has gained nearly 9% against the Yen this year. While against the dollar it has gained just over 1%. Indeed, it is not that the fundamentals of the Euro zone have significantly improved. It is just that Japan seems quite keen on keeping the value of its currency lower to prop up its economy. Investors in the meanwhile have been selling the Japanese currency on the assumption that the Bank of Japan will step up the central bank's efforts to boost the economy through more quantitative easing measures. This in turn would lead to a fall in the value of the Yen.