Thursday, November 9, 2023

Algorithms, Approximation, and Learning in Market and Mechanism Design at SLMath Berkeley this week--Thursday

 Thursday's program (last day)

 09:00 am 09:45 am
Stability and Learning in Strategic Games
Eva Tardos, Cornell University
 09:45 am 10:30 am
Statistical Contract Theory
Michael Jordan, University of California, Berkeley
 10:00 am 10:30 am
Break
 11:00 am 11:45 am
Learning Bayes-Nash Equilibria in Auctions and Contests
Martin Bichler, Technical University of Munich
 11:30 am 11:45 am
Break
 11:45 am 12:30 pm
Recent Advances in Computing Nash Equilibria in Markov Games
Ioannis Panageas, University of California, Irvine
 12:30 pm 02:30 pm
Lunch
 02:30 pm 03:15 pm
Learning in Games and Markets: Talk 5
Tuomas Sandholm, Carnegie Mellon University
 03:15 pm 03:45 pm
Afternoon Tea
 03:45 pm 05:00 pm
Learning in Games and Markets: Closing Panel

Wednesday, November 8, 2023

Algorithms, Approximation, and Learning in Market and Mechanism Design at SLMath Berkeley this week--Wednesday

 Wednesday's program

 09:00 am 09:45 am
Dual Reduction and Elementary Games with Senders and Receivers
Roger Myerson, University of Chicago
 09:45 am 10:30 am
Algorithmic Mechanism Design: Talk 5
Michal Feldman, Tel-Aviv University
 10:30 am 11:00 am
Break
 11:00 am 11:45 am
Simple Mechanisms for Non-linear Agents
Jason Hartline, Northwestern University
 11:45 am 12:30 pm
Mechanism design for humans
Sigal Oren, Ben Gurion University of the Negev
 12:30 pm 02:30 pm
Lunch
 02:30 pm 03:15 pm
Cost Based Nonlinear Pricing
Dirk Bergemann, Yale University
 03:15 pm 03:45 pm
Break
 03:45 pm 05:00 pm
Algorithmic Mechanism Design: Closing Panel


Tuesday, November 7, 2023

Algorithms, Approximation, and Learning in Market and Mechanism Design at SLMath Berkeley this week--Tuesday

 Here's Tuesday's program

 09:00 am 09:45 am
Walrasian Mechanisms for Non-Convex Economies and the Bound-Form First Welfare Theorem
Paul Milgrom, Stanford University
 09:45 am 10:30 am
The Languages of Product-Mix Auctions
Elizabeth Baldwin, University of Oxford
 10:30 am 11:00 am
Break
 11:00 am 11:45 am
Workably Competitive Electricity Markets: Practice and Theory
Shmuel Oren, UC Berkeley
 11:45 am 12:30 pm
(Near) Substitute Preferences and Equilibria with Indivisibilities
Rakesh Vohra, University of Pennsylvania
 12:30 pm 02:30 pm
Poster Sessions and Lunch
 02:30 pm 03:15 pm
Beyond Classical Fisher Markets: Nonconvexities and Online Allocations
Yinyu Ye, Stanford University
 03:15 pm 03:45 pm
Afternoon Tea
 03:45 pm 05:00 pm
Non-Convex Auction Markets: Closing Panel
 05:00 pm 06:20 pm
Reception

Monday, November 6, 2023

Algorithms, Approximation, and Learning in Market and Mechanism Design at SLMath Berkeley this week--Monday

 

Nov
06
2023
Monday
 08:45 am 09:00 am
Welcome
 09:00 am 09:45 am
Kidney Exchange: Within and Across Borders
Alvin Roth, Stanford University
 09:45 am 10:30 am
Stable Matching as Transportation
Federico Echenique, University of California, Berkeley
 10:30 am 11:00 am
Break
 11:00 am 11:45 am
Couples can be Tractable: New Algorithms and Hardness Results for the Hospitals / Residents Problem with Couples
David Manlove, University of Glasgow
 11:45 am 12:30 pm
Advancing Stability in Matching Markets: Multi-Modal Preferences and Beyond
Jiehua Chen, Technische Universität Wien
 12:30 pm 02:30 pm
Poster Sessions and Lunch
 02:30 pm 03:15 pm
Old and New Results on Matching, Assignment, and Selection Problems
Jay Sethuraman, Columbia University
 03:15 pm 03:45 pm
Afternoon Tea
 03:45 pm 05:00 pm
Matching Markets without Money: Closing Panel

Sunday, November 5, 2023

Deceased organ donation in the Economist (article and letter to the editor)

 Here's a recent article on deceased organ donation, in The Economist, followed by a letter to the editor from Alex Chan and me.

In America, lots of usable organs go unrecovered or get binned. That is a missed opportunity to save thousands of lives

"More than four-fifths of all donated organs and two-thirds of kidneys come from dead people (who must die in hospital); living donors can give only a kidney or parts of a lung or liver. Whereas some countries, such as England, France and Spain, have an opt-out model, in America donors must register or their families must agree. Persuading them will always be hard: Dr Karp’s hospital gets consent from about half of potential donors.

...

"Responsibility lies partly with some of the 56 nonprofit Organ Procurement Organisations (opos), like LiveOnNY, that do the legwork. Brianna Doby, a researcher and consultant, advised Arkansas’s opo in 2021 and was astounded to learn that most calls about potential donors went unanswered outside the nine-to-five workday and at weekends. Other opos, by contrast, sent staff to hospitals within an hour of an alert about a prospective donor.

...

"Yet unrecovered organs are not the only reason America could do more transplants. A surprising number of organs from deceased donors end up in the rubbish: more than a quarter of kidneys and a tenth of livers last year.

...

"Hospitals are often risk-averse, too. Discard rates are higher for organs of lower quality.

...

"For elderly recipients, getting older or otherwise risky kidneys generally means better odds of survival than staying on dialysis. But hospitals dislike using them for two reasons. First, they can lead to more complications and thus require more resources, eating into margins. Second, if the recipient dies soon after the transplant, hospitals suffer—a key measure used to evaluate them is the survival rate of recipients a year after transplant. According to Robert Cannon, a liver-transplant surgeon at the University of Alabama at Birmingham, hospitals succeed by being excessively cautious and keeping patients with worse prospects off waiting lists."

#########

And here's our followup letter to the editor, published November 2:

Organ-donation economics

"More than 110,000 Americans are waiting for an organ transplant and over 5,000 died waiting for an organ in 2019. Close to 6,000 recovered organs were discarded. “Wasted organs” (September 23rd) correctly pointed out that the responsibility lies in part with non-profit Organ Procurement Organisations and in part with the excessive caution exercised by transplant centres when deciding who to conduct transplants for and which kidneys to use.

"Numerous initiatives in Congress, and more proposed by various non-governmental agencies, such as the Federation of American Scientists and the National Academies of Sciences, Engineering and Medicine, among others, have been focused on tweaking how the performance of organ procurers and transplant centres should be measured while keeping in place the system that put us in today’s quagmire. As we indicate in our recent paper (conditionally accepted at the Journal of Political Economy), such approaches that keep regulations fragmented are bound to be inefficient, given that the incentives and opportunities facing organ procurers and transplant centres are intertwined.

"We show that “holistic regulation”, which aligns the interests of organ procurers and transplant centres by rewarding them based on the health outcomes of the entire patient pool, can get at the root of the problem. This approach also leads to more organ recoveries while increasing the use of organs for sicker patients who otherwise would be left without a transplant.

"In the end increasing access to kidney transplantation will require the improvement of the entire supply chain of organs. This means boosting donor registrations and donor recoveries from the deceased. It also means increasing living donations, and co-ordinating donations through mechanisms like paired kidney donations and deceased-donor-initiated kidney- exchange chains.


Alex Chan, Assistant professor of business administration, Harvard University

Alvin E. Roth, Professor of economics, Stanford University

####

And here's the paper referred to in our letter, on Alex's website:

Regulation of Organ Transplantation and Procurement: A Market Design Lab Experiment, by Alex Chan and Alvin E. Roth

Abstract: "We conduct a lab experiment that shows current rules regulating transplant centers (TCs) and organ procurement organizations (OPOs) create perverse incentives that inefficiently reduce both organ recovery and beneficial transplantations. We model the decision environment with a 2-player multi-round game between an OPO and a TC. In the condition that simulates current rules, OPOs recover only highest-quality kidneys and forgo valuable recovery opportunities, and TCs decline some beneficial transplants and perform some unnecessary transplants. Alternative regulations that reward TCs and OPOs together for health outcomes in their entire patient pool lead to behaviors that increase organ recovery and appropriate transplants."