He acts in various leading capacities in a number of public policy institutes and organisations, as an adviser to governments and corporations, and as a frequent commentator in the international media.
Prior to joining IMD, Lehmann's journalist, academic and business careers encompassed activities in virtually all Asian and Western European countries, as well as North America.
He was founding director of the European Institute of Japanese Studies (EIJS) at the Stockholm School of Economics (from 1992) and Professor of East Asian Political Economy and Business.
He has been involved in annual MBA student project research field trips to Argentina, Bangladesh, Bosnia-Herzegovina, Kenya and South Africa.
He is a frequent contributor to IMD's Corporate Learning Network (CLN) and will release a series of global leaders’ podcasts in early 2011.
Reflecting his PhD (D.Phil) at Oxford's St Antony's College on Japanese economic history in the late Edo and earl Meiji eras (1850s to 1880s), Lehmann has maintained his interest in Japan about which he has written several books, the most recent, in March 2009, was co-authored with John Haffner and Tomas Casas i Klett and is entitled Japan’s Open Future: An Agenda for Global Citizenship.