This is partly because the Big Four are protected by an automatic government bailout, while everyone else isn't. This creates an unfair competitive advantage ag

This is partly because the Big Four are protected by an automatic government bailout, while everyone else isn't. This creates an unfair competitive advantage against the smaller orgs. The pro is that it creates supreme investor confidence in the Oz banks (and Oz); the con is that the Big Four are using this unfair advantage to hoover up all the smaller orgs. Which could leave Oz with a pigopoly of only four banks. Basel2 helps to even the playing field for the smaller orgs for those that choose to comply, but I feel the Oz govt needs to start blocking any further acquisitions by the Big Four.