He has been Professor (now Emeritus) at the University of Toronto, at the Dalla Lana School of Public Health (since 1983); founding Director of Research at the Institute for Work & Health in Toronto (1991 to 1997); and inaugural Scientific Director of the Canadian Institutes of Health Research - Institute of Population and Public Health (2000-2008). He currently holds a Chair in Public Health Research and Policy at the University of Edinburgh, and directs the Scottish Collaboration for Public Health Research and Policy (www.scphrp.ac.uk). The Collaboration seeks to develop and robustly test novel public health policies and programs to equitably improve health status in Scotland, through the convening and ongoing support of researcher/research-user consortia.