Dai*, Tinglong (Johns Hopkins University)

Tinglong Dai speaker

Tinglong Dai
Johns Hopkins University
100 International Drive
Baltimore, MD 21202

Phone: 410-234-9415
Email:  dai@jhu.edu 
Website: http://tinglongdai.com


Transforming COVID-19 Vaccines into Vaccination: Challenges and Opportunities for Management Scientists

Amid the prolonged COVID-19 pandemic, glimmers of hope have appeared via the miraculous breakthroughs of multiple effective and safe COVID-19 vaccines that were developed with record speeds. Yet, the endgame of the pandemic is not vaccines; it is vaccination. The daunting challenge of vaccinating the world offers ample investigative opportunities for management scientists who are interested in improving the efficiency and equity of healthcare systems. In this talk, I provide a broad overview of COVID-19 vaccination design and highlight a recent work comparing various vaccine rollout policies.

(Appropriate audience: Graduate Students)

Does Transportation Mean Transplantation? Impact of New Airline Routes on Sharing of Cadaveric Kidneys

Every year, nearly 5,000 patients die while waiting for kidney transplants, and yet an estimated 3,500 procured kidneys are discarded. Such a polarized co-existence of dire scarcity and massive wastefulness has been mainly driven by insufficient pooling of cadaveric kidneys across geographic regions. Although numerous policy initiatives are aimed at broadening organ pooling, they rarely account for a key friction — efficient airline transportation, ideally direct flights, is necessary for long-distance sharing, due to the time-sensitive nature of kidney transplantation. Conceivably, transplant centers may be reluctant to accept kidney offers from far-off locations without direct flights. In this paper, we estimate the effect of the introduction of new airline routes on broader kidney sharing. By merging the U.S. airline transportation and kidney transplantation datasets, we create a unique sample tracking (1) the evolution of airline routes connecting all the U.S. airports and (2) kidney transplants between donors and recipients connected by these airports. We estimate the introduction of a new airline route increases the number of shared kidneys by 7.3%. We also find a net increase in the total number of kidney transplants and a decrease in the organ discard rate with the introduction of new routes. Notably, the post-transplant survival rate remains largely unchanged, though average travel distance increases after the introduction of new airline routes. Our results are robust to alternative empirical specifications and have important implications for improving access to the U.S. organ transplantation system.

(Appropriate Audience: Faculty Academics)

Education & Background

  • PhD, Management of Manufacturing and Automation, Carnegie Mellon University
  • MSIA, Management of Manufacturing and Automation, Carnegie Mellon University

Tinglong Dai is an Associate Professor of Operations Management and Business Analytics at the Johns Hopkins Carey Business School, with joint faculty appointments at Johns Hopkins School of Nursing, Hopkins Business of Health Initiative, and Johns Hopkins Institute for Data-Intensive Engineering and Science.

As an internationally renowned expert in healthcare operations management, Prof. Dai has been recognized by the Johns Hopkins Discovery Award, Wickham Skinner Early Career Award, INFORMS Public Sector Operations Research Best Paper Award, and POMS Best Healthcare Paper Award. His research has been published in leading academic journals, including Management Science, Manufacturing & Service Operations Management (M&SOM), Marketing Science, and Operations Research. He serves as an Associate Editor for M&SOM, Naval Research Logistics and Health Care Management Science, and a Senior Editor for Production and Operations Management.

Prof. Dai has appeared in national and international TV such as CNBC, PBS NewsHour, and Sky News, and has received coverage in ABC News, AP News, Barron’s, Bloomberg, CBC, CBS News, CNBC, CNN, Fast Company, Fortune, Globe and Mail, Harvard Business Review, KHN, MarketWatch, Modern Healthcare, NBC, New York Times, NPR, Public Radio International, STAT, U.S. News & World Report, USA Today, Wall Street Journal, Washington Post, and WIRED.

Prof. Dai earned his PhD (2013) and MS (2009) in Operations Management/Robotics from Tepper School of Business, Carnegie Mellon University, in addition to an MPhil (2006) in Industrial Engineering from the Hong Kong University of Science and Technology.