The Japanese yen weakened to 160 per dollar, reaching the zone of potential government intervention, writes the Wall Street Journal. The Japanese Finance Minister called the recent exchange rate fluctuations "one-sided and rapid", and announced her willingness to coordinate market operations with the US Treasury. The weakening of the yen remains one of the main risks to the country's economy: according to data from the Central Bank of Japan, import prices rose by 24.8% year-on-year in October.