As per recent reports, it has been unveiled that yen has declined to its weakest in four months when compared with dollar.

The yen has declined by 0.8% to 100.79 per dollar. Experts were of the view that the decline is the biggest one since July 19. When compared to euro, the yen was found to have declined by 0.5% to 135.09 per euro.

On the other hand, Japan has been making every possible effort in order to get things in control. In a recently held meeting, the Bank of Japan has announced to fulfill its commitment of expanding its monetary base.

It has been found that Japan's central bank has made an expansion of as much as 70 trillion yen a year. After knowing the same, many economists are of the belief that Japan is going to add stimulus in the second quarter of 2014.

Greg Gibbs, a currency strategist at Royal Bank of Scotland Group Plc in Singapore, was of the view about BOJ officials, "still sticking to their guns on their inflation target and they're prepared to do more if required".

In addition, Japan has said to be the worst performer in the list of 10 developed-nation currencies by the Bloomberg Correlation-Weighted Indexes. They have made their decision on the basis of yen performance.