Darryl Biggar is one of the most experienced and widely-known regulatory and competition economists in Australia. In his previous roles (most recently as a Deputy Chief Economist with the Australian Competition and Consumer Commission) he was heavily involved in the design of regulatory frameworks and in the analysis of regulatory and competition questions in a range of sectors of the Australian economy – including the rail transport sector. In previous roles he has advised the AEMC, AEMO, New Zealand Electricity Authority, the OECD, and the Bangladesh government, amongst other clients. He is regularly invited to give talks and presentations at domestic and international events. In 2022 he participated on a panel for the OECD in a Peer Review of the Portuguese Energy Regulator.

He has also published a large number of academic articles on matters of regulation and competition, especially on the design of wholesale electricity markets and in the assessment of market power. In 2014 he published a textbook on the Economics of Electricity Markets. He was the inaugural winner of the Distinguished Scholar award from the International Confederation of Energy Regulators. In 2022 he was appointed as an Adjunct Associate Professor with Monash University. He currently averages about 100 citations per year in the academic literature.

Before joining the ACCC, Dr Biggar was an Analyst for the Competition Division of the OECD where he authored a number of reports on the interaction of competition and regulation in regulated sectors, including the rail sector. Before that, Dr Biggar advised the New Zealand government (MBIE and the New Zealand Treasury). Dr Biggar has a PhD in Economics from Stanford University and an MA in Mathematics from Cambridge University in the UK.