The Japanese yen is moving toward pre-intervention levels on Monday as S&P's downgrade of the U.S. sovereign debt highlights the inability of the U.S. and the Eurozone to resolve their debt problems. Presently, the U.S. dollar retreated 0.74% against the yen to stand around ¥77.89. At the same time, the euro surrendered 0.32% of its value to trade around ¥111.73. Last week, the Bank of Japan intervened in the markets in order to weaken the yen. The yen, along with the Swiss franc and gold, has been acting as a safe haven for investors fleeing the greenback and the euro as the two largest world economies – the United States and the Eurozone – are unable to find a resolution to their debt crises. Japan is an exports-driven economy, and strong yen will hurt the performance of the country's powerful exporting sector. The Japanese authorities had to intervene because without strong performance of exporters, Japan's economic recovery, following the twin natural disasters, will be under threat. In spite of the Bank of Japan's efforts, the yen rebounded quickly. The reason is that the intervention by Japan's central bank did not change market fundamentals. Following the first ever

to AA+ from AAA, the debt concerns in the world's largest economy are likely to even intensify. At the same time, the rating agency left its outlook set at negative, which means more cuts could be in place if the situation with the U.S. budget deficit does not improve. The debt crisis in the U.S. has a potential to further rock the Eurozone. It will be interesting to follow investors' moves. The U.S. Treasury bonds are traditionally considered to be the safest investment. The recent downgrade might spark an exodus of traders from less safe bets, including the Eurozone periphery bonds, which could push Spain and Italy over the edge. In this environment, many traders are seeking shelter in the yen, despite efforts by the Bank of Japan to weaken the yen, and despite the country's fragile economic recovery. On Monday, the world's third largest economy posted mixed results. According to

. In July, the index rose to 52.6, beating analysts' expectations of 50. The index determines the nation's sentiment about Japan's economic activity. Any reading above 50 suggests optimism, while readings below 50 suggest pessimism. The latest data clearly indicate that Japan is recovering from the twin natural disasters that have devastated parts of Japan, creating energy shortages and supply disruptions. However, the speed of Japan's economic recovery will probably not impress many. As a result, if traders continue to seek shelter in the yen, the Bank of Japan may intensify its efforts to stop the yen from rising even higher against the greenback in order to help Japan's exporters and the country's fragile economic recovery.