William Aaronson, associate professor of risk, insurance and healthcare management at the Fox School of Business, presented a paper, “Does lower polyclinic efficiency increase efficiency in hospitals?” at the Sixth World Congress on Health Economics in Copenhagen, Denmark, July 8 to 11. At the conference, he also served on the Scientific Committee of the International Health Economics Association and reviewed several abstracts being considered for presentation. Additionally, Aaronson chaired a session on Hospital Finance at the conference.