Dr Knox is currently a Director in the Actuarial Consulting Services within PricewaterhouseCoopers. From 1992-1999 he was the Foundation Professor of Actuarial Studies at The University of Melbourne. From 1979 to 1992 he was a Lecturer and then Associate Professor of Actuarial Studies at Macquarie University. Prior to his two decades in academia, he worked for National Mutual Life. Dr Knox has acted as a consultant to a range of financial organisations, in both the private and public sectors, specialising in the superannuation and retirement incomes area. He has spoken and written widely in this area and has served on a number of Government and industry committees.

He is also a Board member of the Australian Prudential Regulation Authority (APRA). APRA is responsible for the prudential regulation and supervision of all banks and other deposit taking institutions, life and general insurance companies and superannuation funds in Australia. Dr Knox will be President of the Institute of Actuaries of Australia in 2000 and was named Actuary of the Year in 1996.