Asian-Pacific markets were mixed Tuesday after the Bank of Japan doubled its inflation target to 2% and adopted an unlimited asset-buying program. Japan's Nikkei 225 closed down 0.4%. Hong Kong's Hang Seng Index rose 0.3%. China's Shanghai Composite fell 0.6%. South Korea's Kospi rose 0.5%. Australia's S&P/ASX 200 was unchanged. India's Sensex was down 0.6% at midafternoon.