Showing posts with label market design. Show all posts
Showing posts with label market design. Show all posts

Monday, November 11, 2024

Practical market design makes policy recommendations (which can violate NBER publication policy)

The National Bureau of Economic Research (NBER) publishes a widely read series of working papers, before publication in refereed journals. They also distribute a list of papers that have been published in medical journals, since those journals don't allow prepublication in working papers.  For both these series the NBER has a rule against papers that make policy recommendations.

This is sometimes a problem for the field of market design, since practical market design is about finding ways to improve the operation of markets, which is a kind of policy advice. I encountered this recently with the two papers described below, published in medical journals, which apparently are too policy related: the policy being to save more lives by arranging more transplants, in this case of hearts and kidneys respectively. (Medical journals have their own conventions, but aren't opposed to advice on medical practice...)

I received the following email from the NBER, accompanied by a line of explanation for each paper.

The email began:

"I apologize for my belated response about your journal articles; while the subject matter is clearly vital, after review of the full-text, we determined that your articles make policy recommendations that are too specific for NBER’s policy on working papers (which we apply to papers in the article list)."

 It then continued by highlighting the offending sentences in each article:

1. Alyssa Power MD*, Kurt R. Sweat MA*, Alvin Roth PhD, John C. Dykes MD, Beth Kaufman MD, Michael Ma MD, Sharon Chen MD, MPH, Seth A. Hollander MD, Elizabeth Profita MD, David N Rosenthal MD, Lynsey Barkoff NP, Chiu-Yu Chen MD PhD, Ryan R. Davies MD, Christopher S. Almond MD, MPH, “Contemporary Pediatric Heart Transplant Waitlist Mortality,” Journal of the American College of Cardiology, Vol 84, no. 7, August 13, 2024: 620-632.https://www.sciencedirect.com/science/article/pii/S0735109724075624

"Policy language:  A more flexible allocation system that accurately reflects patient-specific risks and considers transplant benefit is urgently needed."


2. Vivek B. Kute, Himanshu V Patel, Subho Banerjee,Divyesh P Engineer, Ruchir B Dave, Nauka Shah, Sanshriti Chauhan ,Harishankar Meshram , Priyash Tambi  , Akash Shah, Khushboo Saxena,Manish Balwani , Vishal Parmar, Shivam Shah, Ved Prakash ,Sudeep Patel, Dev Patel, Sudeep Desai, Jamal Rizvi , Harsh Patel, Beena Parikh, Kamal Kanodia, Shruti Gandhi, Michael A Rees,  Alvin E Roth,  Pranjal Modi “Impact of single centre kidney-exchange transplantation to increase living donor pool in India: A cohort study involving non-anonymous allocation,”Nephrology, September 2024,https://onlinelibrary.wiley.com/doi/10.1111/nep.14380

"Policy language: We suggest stepwise progress to achieve multicentre, regional, State and then a National program. Ideally, there should be engagement by the National Organ & Tissue Transplant Organization and the World Health Organization. 

While we recommend simultaneous surgery for mDRPs in a single exchange, sometimes logistical aspects have necessitated non-simultaneous exchanges"

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Earlier posts:

Friday, November 1, 2024

Lanchester prize to Ashlagi, Kanoria, Leshno, Braverman and Shi (post 2 of 2)

 INFORMS has now announced the details of the Frederick W. Lanchester Prize, which went to two teams, one of which worked on matching and market design.

Here is the matching team, with a little more detail than in my previous post*, about the papers that were recognized by the award.

2024 - Winner(s)

2024 Winner(s)

Winning material: Collection of Papers: “Unbalanced random matching markets: The stark effect of competition” and “Clearing matching markets efficiently: informative signals and match recommendations
 ############
Here's the prize citation (sent to me by Sasa Pekec, the chair of the prize committee):
"The 2024 Lanchester Prize is awarded to Itai Ashlagi, Mark Braverman, Yash Kanoria, Jacob Leshno, and Peng Shi for their papers “Unbalanced random matching markets: The stark effect of competition” and “Clearing matching markets efficiently: Informative signals and match recommendations”.
These papers have advanced the field of market design by providing fundamental insights into the performance of two-sided matching markets. By introducing a novel theoretical approach, they resolve a long-standing empirical puzzle: why the set of stable matchings is small in many practically important matching markets. Moreover, by creatively integrating match recommendations and signaling strategies, they demonstrate how to reduce congestion in these markets. These contributions have profoundly impacted both methodological work and practical applications focused on the conduct and organization of centralized and decentralized markets."

The other members of the prize committee were Francis de VĂ©ricourt, Wedad Elmaghraby, Fatma Kilinç-Karzan, Azarakhsh Malekian, and Mengdi Wang
#########
Itai shared with me his brief remarks upon accepting the award on behalf of the team at the recent Seattle meeting:
 
"This is a real honor and it is very special to share the prize with my wonderful coauthors Mark Braverman, Yash Kanoria, Jacob Leshno and Peng Shi who could not attend this event today.  It is a great honor and humbling to share this award with  Anatoli Juditsky and Arkadi Nemirovski as well as the distinguished past recipients of the prize. 34 years ago, Alvin Roth and Marilda Sotomayor were awarded the prize for their remarkable and beautiful book on two-sided matching. The last two decades, matching in two-sided markets has been and still is a very active area in Operations Research and economics, with many successful applications and a rich theory. We are grateful to be able to contribute to this area. Thanks to Sasa and the committee. It is a real honor being part of this community."

 ###########

*Earlier: Wednesday, October 23, 2024 Lanchester Prize (Post 1 of 2)

Tuesday, October 29, 2024

"Reviews of Michel Callon’s Markets in the Making: Rethinking Competition, Goods, and Innovation, In Journal of Cultural Economy

 Here's a set of brief reactions to Michel Callon's book Markets in the Making: Rethinking Competition, Goods, and Innovation. The reactions are by a diverse set of authors (as an economist I added a good deal to the diversity:)

"Review Symposium: Michel Callon’s Markets in the Making: Rethinking Competition, Goods, and Innovation. Zone Books,"  by Michel Callon, Paul Langley, Bill Maurer, Timothy Mitchell , Alvin Roth & Koray Caliskan, Journal of Cultural Economy  Published online: 28 Oct 2024

 The symposium collects the following comments:

Introduction to the symposium  by Koray Caliskan

Markets in the making by Paul Langley

The anthropologist at the end of the world? Salvaging anthropology for alternative value propositions by Bill Maurer 

Special and highly artificial processes by Timothy Mitchell 

Markets in the making  by Alvin E. Roth 

Discussion and commentary by Michel Callon

*********

Here is the beginning of my comment:

"Markets in the making
Alvin E. Roth
It is a pleasure to read Michel Callon’s completed book, after a lengthy pandemic correspondence, abridged in Callon and Roth (2021). Callon appreciates that markets are complex, dynamic, and an essential part of society, which itself is constantly changing, not least in response to changes in technology (such as computers and the internet). The book itself is testimony to the speed of change: speaking of gambling addicts, Callon writes “One day it will be possible to reach him at home through an app.” In the U.S. this has happened already, particularly for betting on sporting events while they are underway.

Much of what he says will be very agreeable to both sociologists and economists, although there is room to disagree about how some previous work is interpreted.

The book is not easy reading: the complexities that Callon considers prompt him to develop new words to describe them. He speaks of market “agencements” (which are constantly “reagencing,”) and, “passiva(c)tion” (which requires new punctuation and word formation, as markets help goods become “pass(act)ive”).

Callon also redefines familiar terms such as “competition” and “innovation.”

In market agencements, perfect competition … has nothing to do with that of neoclassical economics. Its only goal is to make bilateral transactions proliferate … 

and
Without innovation, there is no competition, and as a consequence, there is no market activity. … As we will see throughout this book, th[is] rule brooks no exceptions.

Rules that brook no exceptions worry me.


Notwithstanding these quibbles, Callon’s aim is to alert us to how markets, marketplaces, their participants, and the transactions they foster, all interact with one another and the larger economy in intricate ways that shape the society that also shapes them ... "

*********

Here is the beginning of Callon's response to all the remarks in the Symposium:

"Discussion and commentary
Michel Callon
What better way to express my gratitude to the colleagues invited by the JCE than to confess that, thanks to them and their demanding reading, I have a better understanding of what I was trying to do.

When you decide to write a book you have to start with a simple question and try, whatever happens, to take it (develop it) to the end. If you don't succeed, if difficulties and contradictions pile up along the way, it's because the question was badly formulated, or worse, it was uninteresting.

The question I began with is both fundamental and undeniably ambitious: What are the felicity conditions of a commercial transaction, understood as the exchange of property rights for monetary payment? This question, though simple in words, encompasses a vast and intricate world. It involves a specific environment where particular agents engage in relationships, where certain property rights are assigned to entities, where valuation mechanisms are in place, and where currencies circulate. This book focuses on the organization and architecture of this world.

Neologisms
It is difficult to grasp the peculiarities and characteristics of this world without making a detour into economic anthropology, which is one of the fields that studies it. I could have avoided the challenge, given the richness and complexity of this literature, but doing so would have meant abandoning the question. What kept me from giving up was a phrase from Nietzsche that Bruno Latour liked to quote: “For I approach deep problems such as I do cold baths: fast in, fast out.” (Nietzsche Citation2001, 231). Don't be afraid of the cold, but don't let it paralyze you! I tried to follow the advice as best I could, but maybe I didn’t get out of the bath quickly enough! The book is long—probably too long. But that’s not all. Not only does it lack illustrations (mea culpa), but it also introduces neologisms that are almost impossible to pronounce.

Take, for example, the notion of passivaction. When Koray Caliskan and I were looking for a word to describe the curious process that frames an entity's actions, whatever it may be, without limiting the entity’s ability to take unexpected actions, we first thought of “passivation.” We soon realized, however, that this term was quite rightly giving rise to complete misunderstandings. Few had read Antoine Hennion and Emilie Gomard's seminal article on people addicted to hard drugs, which showed that: a) becoming passive required complex and costly efforts, and b) passivity was a form of action in itself. To avoid creating new words, we settled on “pacifying.” While it was a better choice, it didn't fully capture the reality of the process.

When words are lacking, the only solution is to come up with new ones, in the hope that they will capture what we are trying to grasp. Whether we are talking about human beings, technical objects or non-human living beings and the services they provide, there is a balance to be struck between programmed behavior and the ability to deal with the unexpected. What would be the value of a worker with no sense of initiative? What would be the value of a technical object incapable of adapting (being adapted) to new circumstances? What would be the value of a draught horse that, through extreme domestication, had lost all ability to improvise?

No framing can completely stop overflows, and if it could, it would block any chance for adaptation and change. When a process is this universal, continuing to misname it would be a mistake. As Albert Camus said, “To misname things is to add to the misery of the world.” Passivaction may be a barbaric word, but it highlights the dual movement that transforms an entity into something that both acts and is acted on, both configured and configures, both passive, and thus active, or passivacted!"

 

#########

Earlier:

Thursday, January 6, 2022 The design and performation of markets: a discussion, by Michel Callon and Alvin Roth in the AMS Review

 

And if you are meeting Callon for the first time, here's an interview he gave last year:

From Innovation to Markets and Back. A Conversation with Michel Callon  by Alexandre Mallard — 

Here's a snippet from that interview:

"I can count on one hand the collaborations I’ve since had with economists: an edited volume on the concept of network with Patrick Cohendet, Dominique Foray, and François Eymard-Duvernay (Foray et al., 1999), and a recent article cosigned by Alvin Roth on the role of economics in formatting the economy (Callon & Roth, 2021). I enjoyed working with these colleagues because they were open and respectful, and I tried to be too. They understood my efforts to be in dialogue with their discipline. Their attitude was in stark contrast with the majority of their colleagues who were arrogant, bordering on dismissive. Every time I’ve had to share a flight with economists someone has snarked, “Michel, I hope the plane you’re boarding isn’t a social construction!” Economics is by no means a dismal science, but too often economists make it one.

...

"Through these encounters, so filled with incomprehension, it hit me that the very definition of economics was in play. There were so many things to question that went beyond pounding on homo oeconomicus, his unrealism or his vices and virtues. For instance, in contrast to evolutionary economics, mainstream economics was entirely based on an unrealistic definition of goods that was strikingly limited when applied to scientific knowledge. In asserting that scientific knowledge was intrinsically (by nature) non-rival and non-excludable, mainstream economists implicitly recognized that they were completely uninterested in the associated milieu of goods, that is to say in everything that gives them the capacity to be useful and consequently to be used. Economists did not realize that without an associated milieu a good is not a good. A scientific statement airlifted over the Gobi desert has no other fate than to dissipate into the sands because it is deprived of the socio-technical environment that gives it meaning and utility. Likewise, without the infrastructure that allows it to take off, navigate, and land, without the fuel supply contracts, control towers, and air traffic controllers, without the insurance companies, international regulations, and the legal agreements, an Airbus 380 remains grounded. A Nespresso capsule in the palm of George Clooney’s hand, without its dedicated machine or a supply of running water, is as useless as a car on an uninhabited island lost in the middle of the Pacific Ocean. A thing is not born a good, it becomes one; a thing is not born a public good, it must become one too." 

Friday, October 18, 2024

"Market Design and Regulation" at Washington University, Oct 26 (but registration today)

 I'll be giving a public talk at Wash U in St. Louis on Saturday Oct 26, but here's a call for registration that suggests registration may close today. 

"Public Lecture with Al Roth (Stanford University); "Market Design and Regulation"

"Al Roth won the Nobel Memorial Prize in Economic Sciences in 2012. All who are interested in hearing Al Roth speak are invited to register.

"Registration will close on October 18, 2024. Registration is required to attend.

"Professor Roth will give highlights of market design that he pioneered such as kidney exchange and school choice in the first half of the talk. In the second half, Professor Roth will talk about controversial markets that may include topics such as blood plasma, abortion, IVF and surrogacy, marijuana, guns, digital data, etc. "

 

Saturday, September 14, 2024

Interview about repugnance (and this blog) in Hungary

 Here's a link to an interview about repugnance in the Hungary Daily News. The  last question and answer was about this blog.

“Repugnance in human transactions became interesting to me” – interview with Alvin Roth

  "You have been writing the blog Market Design since 2008, and since then you have written almost every day a post. What motivated you to start this blog and what role does it play in your professional life? 

Alvin Roth: I started it for my class. I wanted the students to know that the way to think of ideas for market design is not just to read papers in economics journals but to read the newspaper and follow why markets weren’t working well. Many of my blog posts are short comments on a newspaper article about something in the world. Since I started, it’s also proved to be a useful tool for me to remember things. So, it’s a kind of intellectual diary, as well. I’m currently working on a book on controversial markets and I look at my blog posts for each chapter. Market Design blog is my memory for everything related to market design."

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Related:

Sunday, July 7, 2024

Saturday, September 7, 2024

Market design at Iowa State: course invites remote access

 Bertan Turhan writes to tell me about the market design course he is offering this semester, to which he invites remote participation (for access you can email him at bertan@iastate.edu ).

He writes:

"I wanted to inform you about a second-year PhD course I am teaching this semester with great guest lecturers. It is in person and taken by both Econ, OR, and CS students at ISU, but I also live broadcast it so that others can benefit. ... The course is mainly based on the Online and Matching-Based Market Design (Echenique, Immorlica, and Vazirani). "

Here is the syllabus and other readings.


Friday, September 6, 2024

Stanford celebrates Susan Athey

 This  from Stanford Report:

What motivates Susan Athey. The economist weighs in on incremental innovation, data-driven impact, and how economics is evolving to include a healthy dose of engineering. 

"Today, Athey, the Economics of Technology Professor at Stanford GSB, is using her expertise to promote the public good. In 2019, she founded the Golub Capital Social Impact Lab, which uses digital technology and social science research to improve the effectiveness of social sector organizations.

...

"For more than a decade, Athey’s professional passions have been linked to their potential for impact. She chose to return to Stanford — after six years teaching at Harvard — because of the opportunity for cross-disciplinary collaboration. And she has helped make such collaboration possible. In 2019, she was a founding associate director of the Stanford University Human-Centered Artificial Intelligence Institute. She is also a leader of the Business and Beneficial Technology pillar within Stanford GSB’s newly launched Business, Government, & Society Initiative, which brings together academics, practitioners, and policymakers to address issues such as technology, free markets, and sustainability.

"Athey’s Golub Capital Social Impact Lab epitomizes interdisciplinary work, putting students from computer science, engineering, education, and economics backgrounds to work helping partner organizations leverage digital tools and expertise that are generally only available to — or affordable for — large technology companies.

“I like building things that demonstrate how a class of problems can be solved,” Athey says. “If there is a problem worth solving, and I can solve it myself in a particular case, I know there are other people like me who are going to encounter the same problem. Part of the motivation and theory of change of the lab is that we will solve particular problems for particular social-impact organizations but also create the research that will guide others in solving similar problems.”

...

"Athey says some parts of economics are evolving to include a healthy dose of engineering. In the Microsoft Research interview, she described stereotypical economics research as evaluating existing programs and often finding that “stuff doesn’t work.”

“There’s a lot of negativity,” she says. With help from data and machine learning techniques, “my prediction is that economists are going to become more [like] engineers. Instead of complaining that nothing works, we’re going to start building things that do work to achieve economic outcomes…. We’re going to realize that nothing works if it’s one size fits all, but that a lot of things work if they are actually personalized and appropriately delivered.”

Thursday, July 11, 2024

"Discreteness is the better part of value" (Vince Crawford)

 One of the themes of the conference celebrating Vince Crawford (in anticipation of his 75th birthday) is how two of his early famous papers (Crawford and Knoer, 1981 and Kelso and Crawford, 1982)  helped unify matching theory and the theory of markets and competitive equilibria, and thus began to bring matching theory into mainstream economics.

Vince remarked that the unification of matching with the rest of economics also brought discrete (as opposed to continuous) mathematics into the mainstream of economic theory.

He said he had come to realize that "Discreteness is the better part of value."*


*This is of course a play on the common English language expression "Discretion is the better part of valor," which has an indirect and complicated Shakespearean connection, but in common usage is meant to give advice like "Look before you leap."



Monday, May 6, 2024

The Design of Markets. Una Nobel Lecture (Two talks in Padua, on Tuesday and Wednesday)

 Following my talk in Rome today, I'll be speaking in Padua tomorrow and Wednesday, first giving a seminar on controversial markets, and then a public lecture on market design.

The Design of Markets. Una Nobel Lecture di Alvin Eliot Roth

"On Wednesday 8 May the University of Padua hosts the  Nobel Lecture

...

"The meeting opens with greetings from the vice-rector Antonio Parbonetti  and the director of the Galilean School of Higher Studies,  Gianguido Dall'Agata . The guest is introduced by Antonio NicolĂ² , coordinator of the Social Sciences Class of the Galilean School.

...

"The Nobel Lecture, which is held in English , is  open to the public . To participate, reservations are required 

You can also follow the meeting via  live streaming on YouTube .


The Padua Nobel Lecture by Alvin Eliot Roth is preceded, on Tuesday 7 May at 3pm, by a seminar aimed exclusively at professors, researchers, fellows of the Department of Economic Sciences of the University of Padua - dSEA .
The Economics Seminar  is entitled " Controversial markets and repugnant transactions " and is held at the department headquarters in via del Santo 33 in Padua.

Sunday, April 21, 2024

The Curious Culture of Economic Theory by Ran Spiegler

 Ran Spiegler has new book about the academic culture of the theory part of the Economics profession.  It's open source, so you can sample it online.

The Curious Culture of Economic Theory   by Ran Spiegler

The MIT Press, 2024
ISBN electronic:
 
9780262379038

Here's what it says on the website:

"An essay collection that insightfully explores the professional culture of contemporary economic theory, highlighting key features of successful economic theory from the last quarter century.

"When is a theoretical result taken seriously enough for economic application? How do theorists actively try to influence this judgment? What determines whether a new theoretical subfield adopts a “pure” or an “applied” style? How do theorists respond to economists' penchant for “rational” explanations of human behavior? These are just some of the questions regarding the professional culture of contemporary economic theory that Ran Spiegler attempts to answer in this incisive essay collection, The Curious Culture of Economic Theory. In exploring these questions, Spiegler addresses the norms that economic theorists apply as they produce, evaluate, and disseminate research.

"Introducing a new genre—a kind of cultural criticism of economic theory—the essays in this unique collection highlight elements of style and rhetoric that characterize classic pieces of economic theory from the last quarter century. For each piece, Spiegler offers a precise yet accessible exposition of modern classics of economic theory while placing them in the broader context of the field's professional culture. Affectionate in its criticism and anthropological in its approach, The Curious Culture of Economic Theory is as valuable a complement to standard textbooks in graduate-level economic theory, game theory, and behavioral economics as it is to the libraries of practicing economic theorists, academic economists, historians of economic thought, and philosophers of economics."

I first sampled Chapter 8, whose first sentence is given below:

Chapter 8: From Competitive Equilibrium to Mechanism Design in Eighteen Months 

"If I had to name one major shift in the sensibilities of economic theorists in the past half century, a prime candidate would be the way we conceptualize markets—from quasi-natural phenomena admired from afar to manmade institutions whose design can be tweaked by economist-engineers."

Saturday, April 20, 2024

Call for papers: special issue on Market Design at Mathematics of Operations Research

 Paul Milgrom and Martin Bichler write:

We are excited to announce that, as an initiative arising from discussions during the fall program, the journal Mathematics of Operations Research will be dedicating a special issue on market design (deadline: Sep 30, 2024). This special issue is co-organized by the INFORMS Section on Auctions and Market Design and aims to showcase cutting-edge research in the field, reflecting the depth and diversity of thought that our program sought to cultivate.

We are seeking contributions that not only push the boundaries of our current understanding but also highlight practical implications and potential applications of market design principles. We believe that your research and insights could greatly enrich this special issue, and we warmly invite you to submit your papers for consideration.

We are looking forward to submissions from program participants and to the opportunity to highlight the exceptional work emerging from our community.

Thursday, April 18, 2024

Top Trading Cycles (TTC) and the 50th anniversary of the Journal of Mathematical Economics

 This year marks the 50th anniversary of the Journal of Mathematical Economics, and also of the Top Trading Cycles (TTC) algorithm that was introduced in Volume 1, number 1 of the journal, in the paper by

Shapley, Lloyd, and Herbert Scarf. "On cores and indivisibility." Journal of mathematical economics 1, no. 1 (1974): 23-37. 

TTC was further analyzed in 

Roth, Alvin E., and Andrew Postlewaite. "Weak versus strong domination in a market with indivisible goods." Journal of Mathematical Economics 4, no. 2 (1977): 131-137.

Now the JME is assembling a 50th anniversary collection of papers surveying some of the resulting literatures, with some papers posted online ahead of publication. Here's what they had as of yesterday, including an article on Top Trading Cycles, by Morrill and Roth, and one on Housing markets since Shapley and Scarf, by Afacan, Hu, and Li:

JME’s 50th Anniversary Literature  Edited by Andres Carvajal and Felix KĂ¼bler

  1. Top trading cycles

    In Press, Journal Pre-proof, Available online 16 April 2024
    Article 102984
    View PDF
  2. Bubble economics

    April 2024
    Article 102944
    View PDF
  3. Stable outcomes in simple cooperative games

    April 2024
    Article 102960
    View PDF
  4. Fifty years of mathematical growth theory: Classical topics and new trends

    April 2024
    Article 102966
    View PDF
  5. Housing markets since Shapley and Scarf

    April 2024
    Article 102967
    View PDF

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At least one of the papers in the (virtual) special issue is already published, I gather that some will be in the June issue:

Monday, March 4, 2024