J D WELCH’s scientific contributions

... Although there is a significant body of research in appointment scheduling, the literature has primarily focused on either pure appointment systems or simplified walk-in models. The seminal work by Bailey and Welch [39] followed by subsequent research established fundamental principles for appointment scheduling, but these traditional models lack the ability to capture the complexity of modern dual access systems, especially when strategic walk-in customers are involved. However, recent advancements in queueing theory and game theory open up the potential to understand strategic behaviour in service systems. ...

Reference:

Strategic timing of arrivals to a queueing system with scheduled customers