The Japanese has recorded a decline for the fifth straight week against the US dollar on speculation that the country's central bank would launch an aggressive stimulus package.

Analysts said that the fall is due to expectations for additional political pressure on the Bank of Japan after this week's elections in the country. Japan's main opposition party, the Liberal Democratic Party and its junior coalition partner might be able to secure a majority in the parliament to form a new government. It is widely believed that the Bank of Japan under the new government will continue to aggressively take steps aimed at boosting the economy in the world's third largest economy.

The central bank is looking to consider the policies of the new government before making decisions. Main opposition party leader Shinzo Abe appears to be favoring more fiscal and monetary stimulus and has even asked the central bank to keep the interest rates at zero or even at sub zero levels.

BoJ is also offering unlimited loans to banks in the country boost domestic demand and encourage lending. Experts say that the measures would help the economy but the central bank is required to further steps to boost the economic growth.

The yen fell 1.3 percent to 83.52 per dollar in New York this week.