Saadi Lahlou is Professor and Chair in Social Psychology at the London School of Economics and Political Science, and Director of the Paris Institute of Advanced Study. His most recent book: Installation Theory. The Societal Construction and Regulation of Behaviour (Cambridge University Press, 2017) has received international acclaim for its contribution to activity-based design.

He directed 4 other research units before this: the Consumer Research department of the Centre for Lifestyles and Social Policies (Crédoc, Paris), the Social Forecast Group at Electricité de France, the Laboratory of Design for Cognition at EDF R&D (the largest industry living lab at the time, which he founded and directed for 10 years), and the Department of Social Psychology at the London School of Economics and Political Science. He was a member of the steering committee of the Commissariat Général du Plan (French Prime Minister’s office), and he is a member of the boards of many organizations at national or European level and research programs. He has written 200+ papers, 5 books and many reports. He developed new methods of investigation in behavioral change, text mining, consumption process analysis, action research for innovation, and digital ethnography.