Models and insights for hospital inpatient operations : time-dependent ED boarding time

Pengyi Shi (Krannert School of Management, Purdue University, West Lafayette, Indiana), Mabel C. Chou (Department of Decision Sciences, NUS Business School, National University of Singapore, Singapore), J. G. Dai (School of Operations Research and Information Engineering, Cornell University, Ithaca, New York), Ding Ding (School of International Trade and Economics, University of International Business and Economics, Beijing, China), Joe Sim (NUS Yong Loo Lin School of Medicine and NUS Business School, National University of Singapore, Singapore 119245; and National University Hospital, Singapore)