The 'four pillars' policy gets a warm tick from David Murray's panel, a view likely to attract wide support within the industry."Successive governments have maintained the four pillars policy," the FSI panel said. "The Inquiry views this as appropriate and does not plan to recommend changes. "The banking sector is already concentrated; further significant concentration has the potential to limit competitive pressure in the market and reduce the choices available to Australian individuals and firms. "Although general competition law may prevent a merger between the major banks, the Inquiry sees merit in retaining the four pillars policy."