Dr John Humphreys is the Chief Economist at The Australian Taxpayers Alliance, Sessional Lecturer at the University of Queensland, and Founder of the Libertarian Party.

John has worked previously for The Australian Treasury, done consulting projects for clients including the World Bank and ASEAN, and ran a university research centre (PRIME) and education charity (HCP/Bodia) in Cambodia, for which he was awarded a knighthood in 2016. He has a PhD in economics, has travelled to over 80 countries, and is a qualified JP and scuba divemaster. John lives with his wife and three boys on the Redcliffe Peninsula in Queensland.