The diseconomies of queue pooling in a discretionary task setting
Subtitle: an empirical investigation of emergency department length of stay
By: Hummy Song, Anita L. Tucker, Karen L. Murrell
Contributors: Tucker, Anita L.; Murrell, Karen L.; Harvard Business School
Series: Working paper / Harvard Business School -- 13-079; Working paper (Harvard Business School) -- 13-079
Publisher: Harvard Business School
Published: 2013
Place of publication: Boston ]
Language: eng
Number of pages: 34
Work titles: Impact of pooling on throughput time in discretionary work settings
Description: We conduct an empirical investigation on the impact of pooling tasks and resources on throughput times in a discretionary work setting. We use an Emergency Department's (ED) patient-level data (N = 234,334) from 2007 to 2010 to test our hypotheses. We find that when the ED's work system had pooled tasks and resources, patients' lengths of stay were longer than when the ED converted to having dedicated tasks and resources. More specifically, we find that dedicated systems resulted in a 9% overall decrease in length of stay, which corresponds to a 25-minute reduction in length of stay for an average patient of medium severity in this ED. We propose that the improved performance comes from a reduction in social loafing and a more distributed utilization of shared resources. These benefits outweigh the expected efficiency gains from pooling, which are commonly predicted by queuing theory.
Notes: "March 2013. (Revised August 2013.)" -- Publisher's website.

Revision of The impact of pooling on throughput time in discretionary work settings: an empirical investigation of emergency department length of stay.

Includes bibliographical references (pages 24-26).