Major banks in Australia need yet more capital, the International Monetary Fund argued in a review of macroeconomic policy published overnight."To further bolster financial system stability ...we recommend that the authorities continue to emphasise intensive bank supervision and introduce higher loss absorbency for systemically important banks," the IMF wrote.This could be read as the IMF supporting the introduction of still another layer of minimum capital for the major banks.The Australian Prudential Regulation Authority is still to decide on what additional measures, if any, are appropriate for major banks as it applies a local version of international rules aimed at"domestic, systemically important banks".In a speech two months ago John Laker, chair of APRA, hinted that local banks may avoid having to meet an additional capital charge.Laker said then that "other policy tools, particularly more intensive supervision, can also play an important role in dealing with D-SIBs."On the other hand APRA's assessment of the costs and benefits of the array of new controls on banks since the financial crisis (published this week in Insight) highlighted the higher capital targets being applied to banks in Sweden and Britain.