This study examines both restricted and unrestricted Black-Sholes models, according to Longstaff (1995). Using the Taiwan index options for each day from January 2005 to December 2008, the unrestricted model simultaneously solves the implied index value and implied volatility whereas the...

This study investigates the relevance among corporate governance mechanism, institutional ownership and share repurchase decisions. Examining 220 exchange-listed companies in Taiwan during 2004 to 2006, the main findings are as follows. First, corporate governance mechanisms affect share...