Aiko Tanaka

Aiko Tanaka is a director in the competition practice in Singapore, where she leads the firm’s economic work for clients before competition authorities across South-East Asia, Japan and Australia. She has advised on more than thirty merger reviews and a series of conduct investigations, and has given expert evidence in follow-on damages claims and regulatory appeals.

Her work concentrates on digital platforms, telecoms and fast-moving consumer goods. She is known for empirical market definition in two-sided markets, where she combines transaction data with survey evidence, and for pass-on analysis in claims brought by indirect purchasers. Clients value her ability to explain technical findings to case teams working in several jurisdictions at once.

Before joining Pemberton & Co. she spent six years as a case economist at a regional competition authority, working on merger clearances and abuse investigations, and later advised on telecoms regulation for an economics consultancy in Tokyo. She holds a doctorate in economics from the National University of Singapore and a master’s degree from Keio University.

She is recommended as a competition economist in the Asia-Pacific directories and sits on the programme committee of a regional antitrust forum. She teaches an annual course on the economics of digital markets for competition officials and has published on the treatment of zero-price services in merger control.