Professor Pearce is Professor of Epidemiology and Biostatistics, and Director of the Centre for Global NCDs, at the London School of Hygiene and Tropical Medicine. During 2000-2010 he was Director of the Centre for Public Health Research in the Research School of Public Health on the Massey University Wellington Campus. Since the completion of his PhD in epidemiology in 1985 he has been engaged in a wide range of public health research activities. During 1980-1988 his main research interest was in occupational epidemiology, and during this time he co-authored the leading textbook of occupational epidemiology, published by Oxford University Press in 1989 (the 2nd edition was published in 2004). In the 1990s he conducted a wide range of asthma research projects including the identification of the role of the asthma drug fenoterol in the New Zealand asthma mortality epidemic, studies of occupational asthma, studies of the management of asthma in the community, and more recently studies of the causes of the increases in asthma prevalence in New Zealand and worldwide. He has authored a textbook of asthma epidemiology which was published by Oxford University Press in 1998. He continues to work in a broad range of areas of epidemiological NCD research including epidemiological methods, respiratory disease, neurological disease, cancer, diabetes, indigenous health, and occupational and environmental health research. In 2008 he was made a Fellow of the Royal Society of New Zealand, and he was President of the International Epidemiological Association during 2008-2011.