He was the former Faculty Director at the Programs for Assessment of Technology in Health (PATH) Research Institute. In 2003, Dr. Xie received his Master of Science in Pharmacy Administration from Fudan University (Shanghai) and in 2007 he obtained his PhD in Pharmacoeconomics and Outcomes Research from the National University of Singapore. His research interests include economic evaluations using model and/or clinical trial data, health related quality of life and health preference measures and design of cost effectiveness randomized trails. Xie has particular interest in developing new methods related to health preference elicitation, applying these methods to chronic health conditions such as arthritis, cardiovascular diseases, cancer, Alzheimer’s disease and diabetes.