Liam was appointed initially to La Trobe in 1997. Liam, a La Trobe undergraduate, was awarded the Dean's Medal after completing a first class honours Economics degree in 1995. By July 1997, Liam had completed a coursework Master of Commerce degree at the University of Melbourne. Liam then commenced his PhD thesis in April 1999, which was completed in October 2005. The thesis highlighted his long-standing interest in the areas of exchange rate determination models and macroeconomic cycles, though more recently his research efforts have been concentrated more on sports economics. More recently, Liam has held visiting positions at: University of Michigan (US); Massachusetts Institute of Technology (US); University of Otago (NZ); Lancaster University (UK); University of Exeter (UK) and Monash University. Liam was promoted to full lecturer in the Department of Economics and Finance in December 2002 and to senior lecturer in November 2007.