Analysts fear RBA's rate cuts could fuel property price bubble RECENT history is laced with central bank actions having unintended consequences and the Reserve Bank's rate cuts aimed at helping the economy cope with the end of the mining investment boom is causing concern of a looming property price bubble. AFG, the nation's largest mortgage broker group, yesterday revealed it processed 25 per cent more mortgages last month than a year ago, with one in four for lenders other than the big four banks.