[3] He then chose to study for his doctorate at the University of Chicago with supervision from Gary Becker, Robert Lucas and Sherwin Rosen.
[4] On returning to Australia in 1986, Boxall joined the Department of the Treasury in the Australian Public Service.
[8] He also oversaw efforts to engage the private sector to manage the Department's $2.5 billion property portfolio, with the aim to tap into a strategic partnership as an avenue for resources and expertise.
Boxall worked as a commissioner Australian Securities and Investments Commission between January 2009 and November 2011, leaving to take up a job in the NSW Government as Chairman of the Independent Pricing and Regulatory Tribunal.
[15][16] Boxall was named an Officer of the Order of Australia in 2007 for service to economic and financial policy development and reform in the areas of accrual budgeting, taxation and workplace relations.