“…(1) Bharadwaj, 2000, Dehning & Stratopoulos, 2002, Hitt & Brynjolfsson, 1996, Kim et al, 2009, Peslak, 2003, Rai et al, 1997, Santhanam & Hartono, 2003, Stratopoulos & Dehning, 2000, Tam, 1998(2) Hayes et al, 2001, Mahmood & Mann, 2005, Peslak, 2003, Stratopoulos & Dehning, 2000(3) Alpar & Kim, 1990, Beccalli, 2007, Peslak, 2003, Rai et al, 1997, Shin, 2006, Stratopoulos & Dehning, 2000, Tam, 1998 Contextual factors Contextual factors can be divided into firm, industry and economic factors. Barua et al, 1996, Bharadwaj, 2000, Davern & Kauffman, 2000, Dehning & Richardson, 2002, Ko & Osei-Bryson, 2004, Melville et al, 2004, Zhu et al, 2004 Alignment of IS with a firm's core competencies and business planning and close ties between IS investments and upper management are crucial for enhanced firm performance.…”