Most emergency medical services (EMS) systems send patients to the closest hospitals. This long-standing principle, while maximizing patient welfare in usual times, can lead to hospital overloading and negative patient outcomes during unusual EMS demand shifts caused by events such as the...

This paper formally examines two competing methods of conducting a lottery in assigning students to schools, motivated by the design of the centralized high school student assignment system in New York City. The main result of the paper is that a single and multiple lottery mechanism are...

This paper formally examines two competing methods of conducting a lottery in assigning students to schools, motivated by the design of the centralized high school student assignment system in New York City. The main result of the paper is that a single and multiple lottery mechanism are...