Jeffrey received his PhD in health economics from the Johns Hopkins School of Public Health. He also holds a master's in economics from Johns Hopkins University and a bachelor of arts degree in quantitative economics and decision sciences from the University of California at San Diego. He has taught health economics and economic evaluation classes in Canada, the United States and internationally.
Currently, Jeffrey is pursuing research on how to make health economics more useful to decision-makers. Special interests include health services research related to cancer and mental health and other health issues affecting poor and vulnerable populations. Jeffrey is an award-winning teacher and is the recipient of a Career Scientist Award from the Ontario Ministry of Health and Long-Term Care.