we investigate four hypotheses that may explain share repurchases behavior by examining financial characteristics of Taiwan inns engaging in share buyback activity from 2000 to 2004 compared with those not engaging in such activity. We find differences based on size, profitability, sales volume and stock market value. The most important explanation comes from variables associated with the stock undervalued hypothesis. From the Corporate Governance Perspectives, Share repurchases behavior mitigate undervalued stock and In-formation Asymmetry.