Japanese stocks skidded to two-month lows on Tuesday as heightened concerns about the health of the world economy unnerved investors, triggering a shift in funds to safe havens such as U.S. Japan’s Nikkei share average (.N225) fell 2.4 percent, hitting levels last seen in mid-August, while rising bond prices drove the 10-year U.S. Asian shares had better luck, as MSCI’s broadest index of Asia-Pacific shares outside Japan managed to nudge up 0.6 percent thanks to bargain-hunting though the rise came only after a fall of more than 10 percent since early September.