Tax reform will make Australian housing more affordable and generate revenue, a top economist says. (Dave Hunt/AAP PHOTOS)Tax reform will make Australian housing more affordable and generate revenue, a top economist says. (Dave Hunt/AAP PHOTOS) Credit: AAPTreasurer Jim Chalmers says the federal government is focused on ways to fix housing affordability other than tax reform, as calls grow for a rethink on investor tax breaks. Housing was the defining intergenerational challenge in Australian society, Dr Chalmers said in an interview with Nobel Prize-winning economist Joseph Stiglitz. The savings should then be used to build more social housing, the council's acting chief executive Jacqueline Phillips said.