“…saving nearly 230-300 additional liver patients in South Korea alone (see the last line of Table IV in Section 3.2 and Table VI in Appendix B.2. Increasingly, economists are taking advantage of advances in technology to design new or improved allocation mechanisms in applications as diverse as entry-level labor markets (Roth and Peranson (1999)), spectrum auctions (Milgrom (2000)), internet auctions (Edelman, Ostrovsky, and Schwarz (2007), Varian (2007)), school choice (Abdulkadiroglu and Sönmez (2003)), kidney exchange (Roth, Sönmez, and Ünver (2004, 2007), course allocation (Sönmez and Ünver (2010), Budish and Cantillon (2012)), affirmative action (Kojima (2012), Hafalir, Yenmez, and Yildirim (2013), Echenique and Yenmez (2015)), cadet-branch matching (Sönmez and Switzer (2013), Sönmez (2013)), refugee matching (Moraga and Rapoport (2014), Jones and Teytelboym (2016)), and assignment of arrival slots (Schummer and Vohra (2013), Schummer and Abizada (2017)). Our paper contributes to the emerging field of market design by introducing a new application in dual-donor organ exchange, and also to transplantation literature by introducing three novel transplantation modalities.…”