Most Asian-Pacific markets fell Wednesday. Japan's Nikkei 225 slid 2.1% after stimulus announced by the Bank of Japan disappointed investors and the yen strengthened. South Korea's Kospi lost 0.8%. Hong Kong's Hang Seng Index gave up 0.1%. China's Shanghai Composite rose 0.3%. Australia's S&P/ASX 200 increased 0.2%. India's Sensex was up 0.2% at midafternoon.