A new study confirms what you may have already suspected, banks are making big profits, even out doing their international counterparts. The four main players have focused on making money rather than investing in technology that could lead to a more competitive market. The Commerce Commission draft report concludes there are weak incentives for the major players to compete on price. It said ongoing disruptives forces need to be baked in to address the lack of obvious, aggressive competition, that means customers are missing out. It warns right now Kiwibank's not big enough to be that force. Minister of Commerce and Consumer Affairs, Andrew Bayly speaks to Lisa Owen.