Hummy Song is a PhD candidate at Harvard University. Her research lies at the interface between operations management and health services research. Broadly, she is interested in identifying ways to enable service and knowledge workers to increase their levels of productivity. In particular, she focuses on using data to design systems and policies that enable health care providers to work more efficiently without sacrificing quality.
Through her research, Hummy illustrates that physicians’ behavioral responses to operational choices have a significant impact on their productivity and performance. In the context of emergency departments, her research finds that publicly disclosing relative performance feedback may help improve productivity by reducing the significant variability that exists in physicians’ workflows and processes. In addition, she finds that dedicated queuing systems equip emergency department physicians with an increased sense of ownership that leads to improvements in flow management and productivity that are large enough to outweigh the variability-buffering benefits of pooled queuing systems. At the hospital level, her research finds that physicians respond to cohort turnover in predictable ways that can be proactively managed to mitigate the negative effects of turnover on hospital productivity.
Hummy’s research primarily utilizes large datasets derived from electronic health record systems, hospital inpatient databases, and surveys of the health care workforce. For her research, Hummy has worked with hospitals and health care organizations both in the U.S. and in developing countries.
Hummy’s research has been recognized as the winner of the INFORMS Health Application Society Student Paper Competition and the AcademyHealth Organizational Behavior and Management Division Best Abstract Award. Her work has also been recognized as a finalist for the MSOM Student Paper Competition, the INFORMS Behavioral Operations Management Section Best Working Paper Award, and the POMS College of Healthcare Operations Management Best Paper Competition. During her time as a PhD student, she has also won the Joan P. Curhan Citizenship Award and the Derek Bok Center Certification of Distinction in Teaching.
Hummy received an AB from Harvard College and an MPP from the Harvard Kennedy School of Government. Prior to her PhD studies, she worked with international health organizations conducting randomized control trials and observational studies. She has also worked as a policy analyst at The Century Foundation and with the Campaign for Tobacco-Free Kids on policy development and implementation.