This study adopts a method proposed by Ou Yang et al. (2008), to discuss cause effect relationships and the relevant importance of investors' intentions to use a Mobile Trading System (MTS). The findings suggest that psychological risk is the overall core principal indicator of investors' evaluations. Interestingly, commission discount and gifts are perceived as relatively unimportant. Telephone trading still attracts the attention of investors owing to its benefits of space and time, as well as lower performance risk.
