122 The UMAP Journal 28. 2(2007) Patiente Receive New Receive New ranns Phase 2 Organs Priority I Matc Plnse 3 Last Priority Match tystem Death Simulate death Fi 2. Flowchart for simulati Summary of Assumptions o Arrivals in the waiting queue, both of cadaver donors and needy patients, independent and randomly distributed The generic U.S. transplant network can be simulated as a rooted tree o Death rate can be approximated as a linear function of time on the waiting Other Countries/ Transplantation Policies We researched the policies of other countries, such as China, Australia he United Kingdom; they differ little from the U.S. policy. China uses from executed prisoners, which we do not believe to be ethical. We decided that the policies of Eurotransplant have the best groundwork: People analyze their policy each year, tweaking the waiting-time point system. The Eurotransplant policy does not emphasize regions as much, with the maximum number of points for distance being 300. In contrast, the number122 The UMAP ]ournal 28.2 (2007) Figure 2. Flowchart for simulation. Summary of Assumptions "o Arrivals in the waiting queue, both of cadaver donors and needy patients, are independent and randomly distributed " The generic U.S. transplant network can be simulated as a rooted tree "o Death rate can be approximated as a linear function of time on the waiting list. Other Countries' Transplantation Policies We researched the policies of other countries, such as China, Australia, and the United Kingdom; they differ little from the U.S. policy. China uses organs from executed prisoners, which we do not believe to be ethical. We decided that the policies of Eurotransplant have the.best groundwork: People analyze their policy each year, tweaking the waiting-time point system. The Eurotransplant policy does not emphasize regions as much, with the maximum number of points for distance being 300. In contrast, the number