The econometrics of many-to-one matching: Nikhil Agarwal and William Diamond

It turns out that you can get a lot more information about preferences from many to one (or many to many) matching than from one to one matching, because e.g. something about your employer's preferences (and why they wanted to hire you) can be deduced from who else they hired.

IDENTIFICATION AND ESTIMATION IN TWO-SIDED MATCHING MARKETS 
By Nikhil Agarwal and William Diamond

Abstract: We study estimation and non-parametric identification of preferences in two-sided matching markets using data from a single market with many agents. We consider a model in which preferences of each side of the market is homogeneous, utility is nontransferable utility and the observed matches are pairwise stable. We show that preferences are not identified with data on one-to-one matches but are non-parametrically identified when data from many-to-one matches are observed. This difference in the identifiability of the model is illustrated by comparing two simulated objective functions, one that does and the other that does not use information available in many-to-one matching. We also prove consistency of a method of moments estimator for a parametric model under a data generating process in which the size of the matching market increases, but data only on one market is observed. Since matches in a single market are interdependent, our proof of consistency cannot rely on observations of independent matches. Finally, we present Monte Carlo studies of a simulation based estimator.


Here's my post on Nikhil's defense.

Advice to those seeking a kidney donor

I occasionally get emails from kidney patients seeking advice about transplantation. Often they are seeking a donor. I don't have much help to offer when I correspond with them, but perhaps the generic form of my response will be useful to others. I'm assuming in what follows that the advice is for a kidney patient who is already registered on the deceased donor waiting list and with an American hospital that does a lot of kidney transplants.

Sometimes people write to me with questions related to kidney exchange, on aspects of which I've written many blog posts. For someone who is looking for a living donor, kidney exchange means that the donor you find needn't be compatible with you, he or she simply needs to be healthy enough to donate a kidney, and willing to donate one so that you get one. One of the several kidney exchange networks can take it from there; it is probably best to work with the one that your transplant center has the easiest working relations with, although you can find the links to the ones I work with the most as you sort through my posts.

When I write to someone who already has a donor I write more than this about kidney exchange, but if you don't have a donor, you need to think about how to get one.

If you are not already registered on the deceased donor waiting list, talk to your docs about getting on the list, since time on the list plays an important role for kidneys.  But the waiting lists are organized by region, and the wait is much longer in some regions of the country than in others. (That's why Steve Jobs, who lived in California, got a liver transplant in Tennessee.)

A new organization that helps people register on the waiting lists of regions where the wait is shorter (even if that isn't where the patient lives) is OrganJet (which I've blogged about here). They are mostly involved in helping arrange transportation (since you have to be able to travel for checkups etc. at the distant hospital at which you are registered in addition to your local hospital). But their website has an app that identifies transplant centers with  shorter waiting times, and that might be a good way to start, since this is a case in which there may be a conflict of interest between you and your local transplant center.

But a living donor is likely better as well as quicker, if you can find one. Here's a link suggesting how to organize a campaign for a living donor:
 Living Kidney Donor Network founded by Harvey Mysel.

There are various kinds of kidney matchmaking sites, like matchingdonors.com, and more specialized sites like http://www.kidneymitzvah.com/ and Renewal.
My impression is that quite a few donors come from faith based organizations, so if you are a member of some kind of congregation, you might let them know of your search for a donor.

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There are other options that I don't recommend, but here's a post with a link to an article by the Harvard Law professor Glenn Cohen that seeks to shed some light on overseas markets for kidneys, some less black than others.

Glenn Cohen on Transplant Tourism: purchasing organ transplants internationally

(There's a legal market for kidneys in Iran, but I believe you have to be an Iranian citizen to participate in it.)

Is market design like synthetic biology?

Synthetic biology is concerned with the creation of new kinds of cells and organisms, and an interesting blog post by the economic sociologist/sociologist of science Juan Pablo Pardo-Guerra at LSE riffs on some possible connections between synthetic biology and market design: Will the Real Engineers Please Stand Up

He concludes:

"Talking with the language of design provides, as Martha Poon rightly pointed out, a more productive approach to the study of markets. But it also makes possible imagining a bolder version of market design than that currently advocated within economics. While the markets created by Roth and Milgrom are truly feats, much more can be done. Indeed, market design need not be a type of ‘consultancy economics’. Rather, it can follow an alternative metaphor that is pragmatic, perhaps even civic, an image of the future closer to that of the (biological) engineers who today work away in their labs redesigning the fundamental building blocks of nature."

**************

Pardo-Guerra is working in the emerging sociological/science-studies tradition of "performativity". Here's his paper Making markets: infrastructures, engineers and the moral technologies of finance which tracks the development of electronic financial exchanges through the electronic order book:

"How do markets change? Conventional sociological accounts answer this question by stressing the weight of social structures on the transactional core of  the marketplace. This paper provides an alternative approach. Market change is identified as an infrastructural transformation in which novel market devices and classifications are defined as the legitimate platforms for exchange. Rather than focusing on the traditional subjects of sociological enquiry, this study looks at the developers of market infrastructures in order to appraise the evolution and reinvention of markets. Empirically, the paper focuses on four historical episodes relating to the invention and dissemination of the electronic order book, a device that is central to global financial capitalism. These show how infrastructural work was implicated in creating the politics and structures of modern finance by criticising established institutions, mounting competitive challenges against incumbent institutions, establishing expansive projects of marketization and integrating otherwise disconnected marketplaces."
***********

He also has coauthored an interesting looking paper on high frequency trading (that I haven't yet read, only the abstract is on his site):  Drilling Through the Allegheny Mountains: Liquidity, Materiality and High Frequency Trading

(it will be interesting to compare the work of economic sociologists with that of market designers on this topic, see e.g. this recent post Budish, Cramton and Shim on The High-Frequency Trading Arms Race)
*************
He and his colleagues seem to be bringing some thought about market design into the discussion of the sociology of markets.

Citation collaboration

"Impact factors" have become important to journals, and efforts to manipulate them come to light from time to time. Here's a Brazilian story from the journal Nature: Brazilian citation scheme outed
Thomson Reuters suspends journals from its rankings for ‘citation stacking’.

"Mauricio Rocha-e-Silva thought that he had spotted an easy way to raise the profiles of Brazilian journals. From 2009, he and several other editors published articles containing hundreds of references to papers in each others’ journals — in order, he says, to elevate the journals’ impact factors.

"Because each article avoided citing papers published by its own journal, the agreement flew under the radar of analyses that spot extremes in self-citation — until 19 June, when the pattern was discovered. Thomson Reuters, the firm that calculates and publishes the impact factor, revealed that it had designed a program to spot concentrated bursts of citations from one journal to another, a practice that it has dubbed ‘citation stacking’. Four Brazilian journals were among 14 to have their impact factors suspended for a year for such stacking. And in July, Rocha-e-Silva was fired from his position as editor of one of them, the journal Clinics, based in São Paulo."

Are behavioral results more likely to be exaggerated than biological results?

That's the claim (reported in the blog Retraction Watch) of

"a new paper in theProceedings of the National Academy of Sciences (PNAS) suggests that it’s behavioral science researchers in the U.S. who are more likely to exaggerate or cherry-pick their findings.

For the new paper, Daniele Fanelli — whose 2009 paper in PLoS ONE contains some of the best data on the prevalence of misconduct — teamed up with John Ioannidis, well known for his work on “why most published research findings are false.” They looked at

1,174 primary outcomes appearing in 82 metaanalyses published in health-related biological and behavioral research sampled from the Web of Science categories Genetics & Heredity and Psychiatry and measured how individual results deviated from the overall summary effect size within their respective meta-analysis.

And while studies

whose outcome included behavioral parameters were generally more likely to report extreme effects, and those with a corresponding author based in the US were more likely to deviate in the direction predicted by their experimental hypotheses, particularly when their outcome did not include additional biological parameters.

But they didn’t find the same to be true for non-behavioral studies.

Although this latter finding could be interpreted as a publication bias against non-US authors, the US effect observed in behavioral research is unlikely to be generated by editorial biases. Behavioral studies have lower methodological consensus and higher noise, making US researchers potentially more likely to express an underlying propensity to report strong and significant findings.

So where might this predisposition come from, ask the authors?

A complete explanation would probably invoke a combination of cultural, economic, psychological, and historical factors, which at this stage are largely speculative. Our preferred hypothesis is derived from the fact that researchers in the United States have been exposed for a longer time than those in other countries to an unfortunate combination of pressures to publish and winner-takes-all system of rewards (20, 22). This condition is believed to push researchers into either producing many results and then only publishing the most impressive ones, or to make the best of what they got by making them seem as important as possible, through post hoc analyses, rehypothesizing, and other more or less questionable practices (e.g., 10, 13, 22, 26). Such a pattern of modulating forces may gradually become more prevalent also in other countries currently and in the near future (18, 20, 21)."

...
"And Fanelli was also quick to point out that this kind of exaggeration doesn’t seem to be exclusive to the U.S.

The US are an ideal subject because they are relatively homogeneous and yet very big and scientifically productive, so it was easy for us to compare the US to the rest of the world. And of course the US-effect was especially interesting, since it helped us exclude classic explanations, such as editorial biases and simple file-drawer effects. But we suspect that with higher statistical power we would observe specific biases in other countries, in Europe and elsewhere, possibly limited to specific fields and periods in time.

Before opening the floor to what we hope will be a robust discussion, we’ll close with lovely description of science that opens the paper:

Science is a struggle for truth against methodological, psychological, and sociological obstacles."

German kidney transplant surgeon on trial

Prosecutors in Germany have accused a transplant surgeon of attempted murder, for allegedly manipulating the waiting list to obtain organs for his patients, and thus victimizing those who should have been ahead of them in line to receive the organs in question

Google translate renders the headline as "He killed without being a murderer"

"The surgeon Ayman O. is on trial. He is said to have manipulated information to patients to transplant organs to them. The prosecution sees this as attempted murder, he had taken the death of the other into account. The process in Göttingen will make the system of organ allocation to the test."

HT: Rosemarie Nagel

In Taiwan, most registered organ donors are women

Women far more willing to donate organs, numbers show

"Taipei, Aug. 25 (CNA) Of the 620,000 people on Taiwan's organ donation list, 65 percent are women, which one expert says proves woman have bigger hearts than men.

"Wu Ying-lai, secretary general of the Republic of China Organ Procurement Association, made the remarks as her association released a report on trends in local organ donation to mark its 20th anniversary on Sunday.

"The trend is more pronounced in the largest demographic of organ donors, those aged 21-50, which features 2.2 times more women than men, Wu said, based on an analysis of the 223,250 people who have signed up for the national organ donation program in the past 10 years.

"Looking at the data more closely, the largest groups of donors are women aged 31-40, followed by women aged 41-50, women aged 21-30, men aged 31-40, and men aged 41-50, she noted."

A sociologist looks at the design of electricity capacity markets

The discussion among sociologists of the "performativity" of economics is taking more sophisticated note of market design.  Here's a recent paper from the journal Social Studies of Science.

Designing a market-like entity: Economics in the politics of market formation
Daniel Breslau
Department of Science and Technology in Society, Virginia Tech, Blacksburg, VA, USA

Abstract: Recent work on the relationship of economics to economic institutions has argued that economics is constitutive of economic institutions, and of markets in particular. In opposition to economic sociology, which has treated economics as a competing disciplinary frame or an ideology, the ‘performativity’ literature takes economics seriously as a set of market-building practices. This
article demonstrates the compatibility of these perspectives by analyzing the role of economics
in the politics of market formation. It presents a case study of the formation of a new institution:
capacity markets connected to wholesale electricity markets in the United States. The case
demonstrates how economic framing shapes the politics of markets by imposing a specific set of
terms for the legitimate conduct of the struggle over market rules.

Project Renewal: Kidney donation in faith-based communities

It appears that many American non-directed kidney donors (perhaps a third, judging from informal evidence from the programs with which I deal) come from faith-based communities. (I understand that policemen and firemen are also well represented among nondirected donors.) Non-directed donors are particularly important because they can initiate chains of donations among patient-donor pairs waiting for kidney exchange.

A Jewish organization that has contributed many non-directed donors is Renewal, founded by Mendy Reiner.

Here's an article about Renewal, by Rabbi Boruch Wolf, which focuses on the big effect of these living donors from the religious Jewish community, and contrasts it with the reluctance of members of that community to sign deceased-donor registration cards, because of concerns among other things about what is involved in deciding that someone is deceased.
Do Chareidim Contribute Their ‘Fair Share’ of Organs?

Kidney transplantation in Nepal

From (the blog) The Kidney Doctor, comes these remarks and links on kidney transplantation in Nepal. They surely apply to other countries as well, since many countries have laws against living donor transplants from unrelated donors.

The first kidney transplant program in Nepal was launched in 2009 by Dr. Dibya Singh Shah at Tribhuban University Teaching Hospital (TUTH) with the help of an Australian transplant surgeon. Over 200 transplants have been performed, but these are exclusively living related. Launching and maintaining a quality kidney transplantation has been a heroic effort on the part of Dr. Dibya Singh. Many in her place would probably not pulled off what she has done. 

However, more needs to be done. No living unrelated transplants are allowed under Nepalese law and there is no deceased donor program. 

 The government of Nepal needs to change it's policy on unrelated donor transplantation. By not allowing this to happen, a sizable number of patients are denied the opportunity of receiving a transplant and a new lease on life. It is a pity that the price of avoiding a small number of bad actors doing commercially motivated transplantation in Nepal means patients who have an unrelated donor being unable to undergo transplantation. It doesn't seem either feasible or sensible to limit a whole country to an approach that is essentially driven by fear. 

Ashlagi and Shi on community cohesion in school choice

Itai Ashlagi and Peng Shi have a paper motivated by some of the recent discussions of school choice in Boston:

Improving Community Cohesion in School Choice via Correlated-Lottery Implementation
Itai Ashlagi and Peng Shi
Draft Date: August 6, 2013

Abstract:
In school choice, children submit a preference ranking over schools to a centralized assignment algorithm, which takes into account schools’ priorities over children and uses randomization to break ties. One criticism of current school choice mechanisms is that they tend to disperse communities so children do not go to school with others from their neighborhood.
We suggest to improve community cohesion by implementing a correlated lottery in a given school choice mechanism: we find a convex combination of deterministic assignments that maintains the original assignment probabilities, thus maintaining choice, but yields increased cohesion.

To analyze the gain in cohesion for a wide class of mechanisms, we first prove the following characterization which maybe of independent interest: any mechanism which, in the large market limit, is non-atomic, Bayesian incentive compatible, symmetric and efficient within each priority class, is a “lottery-plus-cutoff” mechanism. This means that the large market limit can be described as follows: given the distribution of preferences, every student receives an identically distributed lottery number, every school sets a lottery cutoff for each priority class, and a student is assigned her most preferred school for which she meets the cutoff. This generalizes Liu and Pycia (2012) to allow arbitrary priorities. Using this, we derive analytic expressions for maximum cohesion under a large market approximation. We show that the benefit of lottery-correlation is greater when students’ preferences are more correlated.

In practice, although the correlated-lottery implementation problem is NP-hard, we present a heuristic that does well. We apply this to real data from Boston elementary school choice 2012 and find that we can increase cohesion by 79% for K1 and 37% for K2 new families. Greater cohesion gain is possible (tripling cohesion for K1 and doubling for K2) if we apply lottery-correlation on top of reducing the choice menu (to what was eventually adopted by Boston after the 2012-2013 school choice reform). This has minimal impact on racial or socio-economic diversity.

Sex trafficking from Nepal to India

This story from the NY Times reports on sex trafficking in which at least some women are kidnapped and involuntarily sold to brothels: Women, Bought and Sold in Nepal.

"Although reliable data on the scope of the issue is difficult to gather, Unicef reports that as many as 7,000 women and girls are trafficked out of Nepal to India every year, and around 200,000 are now working in Indian brothels."
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Market designers spend a lot of our time trying to make failed markets succeed, but this kind of thing is a reminder that many markets succeed so well that even making them illegal isn't sufficient to make them fail. I don't know enough about this particular market, but in general we might spend some time thinking on how to make illegal markets fail...

NBER Market Design conference at Stanford, Oct 25 (and 26)

Below is the announcement, from Susan Athey and Parag Pathak. Although the conference is at Stanford, I won't be able to attend because it conflicts with the ESA meetings at which I was already scheduled to speak. But come if you can, Stanford is lovely in the Fall.

From: Susan Athey and Parag Pathak

To: NBER Market Design Working Group

The National Bureau of Economic Research workshop on Market Design is a forum to discuss new academic research related to the design of market institutions, broadly defined. The next meeting will be held in Stanford, California on Friday, October 25, 2013.

We welcome new and interesting research, and are happy to see papers from a variety of fields. Participants in the past meeting covered a range of topics and methodological approaches.  Last year's program can be viewed at: http://conference.nber.org/confer/2012/MDf12/program.html

The conference does not publish proceedings or issue NBER working papers - most of the presented papers are presumed to be published later in journals.

There is no requirement to be an NBER-affiliated researcher to participate.  Younger researchers are especially encouraged to submit papers.  If you are interested in presenting a paper this year, please upload a PDF version by September 2, 2013 to this link:

http://papers.nber.org/confsubmit/backend/cfp?id=MDf13

Preference will be given to papers for which at least a preliminary draft is ready by the time of submission. Only authors of accepted papers will be contacted.

For presenters and discussants in North America, the NBER will cover the travel and hotel costs. For speakers from outside North America, while the NBER will not be able to cover the airfare, it can provide support for hotel accommodation.

There are a limited number of spaces available for graduate students to attend the conference, though we cannot cover their costs. Please email ppathak@mit.edu a short nominating paragraph.

Please forward this announcement to any potentially interested scholars.  We look forward to hearing from you.

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Updated: it will be a two day conference, Oct 25-26 (so it exactly overlaps with the ESA meetings:(
Here is the program

Double blind reviewing

"Double blind reviewing" is the practice in some academic journals of not only concealing the reviewers' identities from the authors, but of also concealing the authors' identities from the reviewers. The idea is that papers should be evaluated "on their own merits," without information about the authors. The controversies that arise have to do with whether there is valuable information in knowing who the authors are.  For a number of years the American Economic Review tried to have double blind reviewing (that was somewhat undermined by the growing ease of finding papers on the internet), but they abandoned this practice a few years ago.

I was reminded of this by the story of J.K. Rowling's (of Harry Potter fame) venture into publishing a story under a pseudonym, later revealed...

‘Cuckoo’s Calling’ Reveals Long Odds for New Authors

"“The Cuckoo’s Calling” became the publishing sensation of the summer when word leaked that its first-time author, Robert Galbraith, was none other than J. K. Rowling, the mega-best-selling creator of Harry Potter.

"Mystery solved? Maybe not. It’s no surprise that “The Cuckoo’s Calling,” a detective story set in a London populated by supermodels and rock stars, shot to the top of best-seller lists once the identity of the author was revealed. But if the book is as good as critics are now saying it is, why didn’t it sell more copies before, especially since the rise of online publishing has supposedly made it easier than ever for first-time authors?"

Fading repugnance watch: Marijuana and same sex marriage

Two stories in yesterday's NY Times were about repugnant transactions that are in the process of becoming less repugnant:

U.S. Says It Won’t Sue to Undo State Marijuana Laws
"The Obama administration on Thursday said it would not sue to undo laws legalizing marijuana in 20 states, although it will monitor operations in those states to make sure they do not run afoul of several enforcement priorities."

I.R.S. to Recognize All Gay Marriages, Regardless of State
"All legally married same-sex couples will be recognized for federal tax purposes, regardless of whether the state where they live recognizes the marriage, the Treasury Department and the Internal Revenue Service said Thursday."

Wagaroo update: designing a mechanism to identify responsible sources for pet dogs

In February, Christine Exley, a graduate student in economics at Stanford, introduced us to Wagaroo, a new market for pets, here. Since then, she has developed an interesting new mechanism to screen out puppy mills from her Owner Rehoming Program. Her Owner Rehoming Program is also serving as a substitute for animal shelters for some dogs.   As Wagaroo expands she and her colleagues hope this will help drive down the animal shelter population. (You can hear her in the last link below, a video...)  

She writes:

"Wagaroo makes it easy for people to find dogs from ethical sources.  We only post dogs from the shelters, rescues, responsible breeders, and families needing to rehome their dogs.  Dogs are adopted from the last group via our Owner Rehoming Program, which involves owners who need to find new loving homes for their dogs due to a variety of reasons, such as a death in the family, financial challenges, or having to move.  By using our Owner Rehoming Program, these owners keep their dogs until they find a new family for their dog – that is, they keep their dogs out of animal shelters.

"When we were developing our Owner Rehoming Program, we wanted to develop a system that keeps out puppy mills, places that cruelly mass-produce puppies in horrid conditions.   To do so, we thought of a mechanism that aligns incentives.  To illustrate, lets assume Alice wants to adopt a dog from Bob through our Owner Rehoming Program.   To finalize the adoption, Wagaroo asks Alice to pay a $100 adoption fee to Wagaroo, 50% of which is donated to a local animal shelter.  

"How does this keep out puppy mills?   First, Bob does not receive any money for his dog, so he clearly is not a puppy mill trying to make money by selling dogs.  Since Alice does not want a dog from a puppy mill, we can rely on her to not pay Bob.   Second, Bob wants to avoid problems that can arise when giving away dogs for free, such as them being used in dog fights or other cruel ways.   Because of this, we can rely on Bob making sure Alice pays the adoption fee to Wagaroo. This aligns incentives well, and the system is working wonderfully so far!

"If you would like to support our cause, please join in our crowdfunding campaign on indiegogo. You may also learn more about the economics behind Wagaroo in this video!"

Tourism pricing at the Jaipur observatory

Here's the price list...

And well worth it, to see a sculpture garden of assorted sundials of varying sophistication:

Why it's hard to reimburse non-directed kidney donors for their travel costs

A letter to the editor of the American Journal of Transplantation:

To the Editor:

We are responding to the Melcher et al. [1] article, which recommends that the National Living Donor Assistance Center (NLDAC) pay for travel and lodging for nondirected donors (NDDs). We commend the work done by this group of stakeholders and believe the publishing of their findings is vital to improving the process of kidney paired donation. We do, however, need to clarify one point in their many important recommendations.

The article recommends “The National Living Donor Assistance Center should provide travel and lodging expenses to the NDD.” It is important to note that there are limits to the NLDAC program that were put in place by the U.S. Congress. NLDAC cannot pay for the travel and lodging expenses for all NDDs. The Organ Donation Recovery and Improvement Act (ODRIA) [2] established the legislative parameters for NLDAC. ODRIA states that individuals may not receive compensation from the grant if these expenses can reasonably be paid by a State or Federal program, an insurance company or the recipient of the organ. ODRIA requires means testing of the recipient's household income.

In practice, this means a recipient must be identified before an application can be filed with NLDAC. Because NDDs do not have a recipient identified before their evaluation trip to transplant center, NLDAC cannot reimburse those expenses. However, after a recipient is identified, a NLDAC application may then be filed. It should be noted that NLDAC received 42 applications between 2008 and 2012 for NDD, of which 32 were approved, providing NDDs with reimbursement of travel expenses through NLDAC.

If the recipient's household income is below the income threshold of 300% of the HHS Poverty Guidelines, NLDAC is allowed to reimburse those donor's expenses for the surgery and medical follow-up trips. If the recipient's income is above the income threshold, NLDAC may reimburse the donor's expenses if financial hardship is proven by the recipient. If the application is not approved, the National Organ Transplant Act (NOTA) [3] allows the recipient to reimburse the donor's expenses.

Lastly, we agree with the article's recommendation that payers should cover donor travel and lodging costs given that, by donating and traveling, the donor is enabling not only the recipient's transplant, but also those of other recipients.

This letter represents the views of the authors and does not necessarily represent the views of the grant funder.

A. O. Ojo1*, R. M. Merion2, D. H. Howard3 and P. H. Warren4
1Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
2Division of Transplantation, Department of Surgery, University of Michigan, Ann Arbor, Michigan
3Department of Health Policy and Management, Emory University, Atlanta, Georgia
4National Living Donor Assistance Center, American Society of Transplant Surgeons, Arlington, Virginia
*Corresponding author: Akinlolu Ojo, aojo@med.umich.edu
 The letter is found under the heading
Response to “Dynamic Challenges Inhibiting Optimal Adoption of Kidney Paired Donation: Findings of a Consensus Conference” by Melcher et al.
American Journal of Transplantation, Volume 13, Issue 8, page 2228, August 2013

The multiple organ recipient who is also an organ donor...

...and a doctor, and a transplant activist.
Here's a remarkable story about Allison John, who needed so many organs that it was easiest to do the surgery if she also got a new heart, and so she became a heart donor at the same time as she became a heart transplant recipient: Daily Mirror Pride of Britain winner Allison John made history by becoming the first person in Britain to have a liver, heart, lung and kidney transplant 

Today she's healthy enough to have gone to medical school and become an organ donor activist...

A Mentor of Market Designers

Here's an interview with Eduardo Azevedo about being my student: I just came across it recently. I'm proud of him too.  The Mentor of Market Designers

Organ donation in Britain: will it follow Israel's lead?

The idea of encouraging people to register as organ donors by giving some priority to registered donors for receiving organs should they need them is still under discussion in Britain, motivated in part by the Israeli experience.  Here's a story from the Telegraph:
Registered organ donors could be given priority for transplants
"Patients who have agreed to donate organs could be given priority if they ever need a transplant, under proposals being considered by the NHS.
...
"In a report published today (THURS) NHS Blood and Transplant published a new plan to improve organ donations.
"The report floats one approach where patients already on the Organ Donor Register would be given higher priority for transplants should they need one.
"Professor James Neuberger, associate medical director at NHS Blood and Transplant, said: “They do this in Israel and it has encouraged donation.
“It was first introduced in Singapore. While they don’t exclude those who don’t donate, it gives priority to those who are on the donor register.
“Whether it is appropriate for the UK is up for debate and discussion.”
"Any move to prioritise patients on the donor register would require a decision by ministers and a change in organ allocation rules."
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The subject will be debated at the upcoming National Donation and Transplantation Congress, which is being held at the University of Warwick in early September.

Here's the announcement of the debate, with Jay Lavee, the Israeli heart transplant surgeon who has been at the heart of the change to priority in Israel speaking in favor (and presumably some of the others speaking against...)

The David Price Memorial Lecture / Debate: Should we have to give in order to receive? 

Chair:   James Neuberger

Speakers:  Jacob Lavee  – Israel

  Kevin Gunning -  Intensive Care Society

  Anthony Warrens – British Transplantation Society

  Penney Lewis – UK Donation Ethics Committee

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Here is the UK Organ Donation and Transplantation site, and here are some links to the NHS Blood and Transplant Service documents on current proposals:

Taking Organ Transplantation to 2020
Here's the accompanying full report (pdf)

The table is from that report, summarizing the goals and current situation.

Here's an earlier post  of mine on this subject.

Here are other earlier posts following Jay Lavee's work

When assortative matching on age can interfere with matching

Here's an article addressed to the shidduchim crisis, that leaves some orthodox Jewish women without a husband. The article highlights a video made by young men who married happily after relaxing the customary insistence that the bride be younger than they.

"A recent YouTube video produced by NASI, the North American Shidduch Initiative, suggests that young boys can and should marry older girls — even if the girl is four months his senior, or, God-forbid, one year and three months older (what a crisis!)."

Bollywood support for organ-donor registration in India

A Bollywood film and its cast promote deceased organ donation: Ship of Theseus carries message about organ donation

Read more: http://www.thenational.ae/arts-culture/film/ship-of-theseus-carries-message-about-organ-donation#ixzz2cfAO6go9
Follow us: @TheNationalUAE on Twitter | thenational.ae on Facebook

"The film Ship of Theseus, India’s latest art-house sensation, aims to make the audience leave the cinema quietly resolving to sign a pledge donating all their organs.

"In fact, the film’s cast, as well as the filmmaker Kiran Rao and her husband, the Bollywood actor Aamir Khan, attended a function in Mumbai last week to pledge their organs.

“We had discussed it before but after seeing Ship of Theseus, we realised that it was something we had to do – give the gift of life and use our bodies to change the life of not just one person but several,” said Rao.

"The central question of Ship of Theseus derives from a question posed by Plutarch: if you replace all the decayed planks of a ship, does it remain the original ship?"

HT: Seema Arora

Signaling that you're not a business traveller by committing to a mixed strategy

Airlines like to price-discriminate against business travellers and others whose trips are non-discretionary. So, how to identify the leisure travellers?

Travel site Getgoing.com offers substantial airfare discounts to those who agree to "Pick Two, Get One" and choose two destinations and let the site choose one of them.

Recruiting through social networks like LinkedIn

The Washington Post talks about how networking sites like LinkedIn are changing recruiting practices for the already employed: How LinkedIn has changed the way you might get your next job


"As LinkedIn has exploded — perhaps because it has exploded — there has been a major shift in the way employers find new workers. Gone are the days of “post and pray,” a recruiter’s adage for the practice of advertising a job opening and then idly hoping that good candidates swim up to the bait.

"Now the process of talent acquisition is something of a hunt.

“We’re really at a point now where all of your employees are vulnerable to being poached. Every single one,” said Josh Bersin, principal and founder of talent consulting firm Bersin by Deloitte.

"The change is happening rapidly: A 2013 study by the Society for Human Resource Management found that 77 percent of employers are using social networks to recruit, a sharp increase from the 56 percent who reported doing so in 2011. And among the recruiters using social tools, 94 percent said they are using LinkedIn.

"LinkedIn has also shaken up the job candidate experience for workers of all sorts. Satisfied employees in high-demand fields are frequently getting unexpected nibbles to gauge their interest in new opportunities. 
...
"And while LinkedIn has become recruiters’ primary hub for chasing passive talent, it’s not the only place they’re looking: Facebook, Twitter and niche sites such as GitHub have also become channels for identifying prospective job candidates.

...
"About 20,000 clients are using LinkedIn’s talent solutions products. These tools have fast become the company’s financial backbone: Of the $364 million in revenue that LinkedIn reported in the second quarter, $205 million came from this division..."


But success brings congestion:

"Jennifer Boulanger, director of talent acquisition at Arlington-based Opower, said she’s already seeing this happen in certain high-demand job categories.

“Most engineers, they get probably 10 to 15 LinkedIn mails every day,” Boulanger said. “So we actually got away from doing a lot of LinkedIn for engineers.”

"Still, she’s using LinkedIn Recruiter to fill a host of other positions. In fact, she has nearly 11,000 candidates in her applicant tracking system that were identified through this platform..."

Here's a competitor for a niche that may be particularly difficult to search:

"Kathleen Smith of ClearedJobs.net, a career site for people with government security clearances, said that hers is a niche in which many qualified candidates are not easily found on LinkedIn.

 “When you’re talking in the cleared community, people are not very comfortable sharing a lot of information,” Smith said, since they often work on classified projects and are accustomed to maintaining a certain level of privacy about themselves and their work.

"Even some of the basics can be difficult to discern, as workers are typically advised not to disclose in their profiles that they have a security clearance."

Ten kidney exchange transplants on World Kidney Day in Ahmedabad, India

Here's the link:

Clinical Studies

Ten kidney paired donation transplantation on World Kidney Day 2013: raising awareness and time to take action to increase donor pool

Posted online on August 12, 2013. (doi:10.3109/0886022X.2013.823997)

Vivek B. Kute¹, Aruna V. Vanikar², Pankaj R. Shah¹, Manoj R. Gumber¹, Himanshu V. Patel¹, Divyesh P. Engineer¹, Pranjal R. Modi³, S.J. Rizvi³, Veena R. Shah⁴, Manisha P. Modi⁴, Kamal V. Kanodia², and Hargovind L. Trivedi¹

¹Department of Nephrology and Clinical Transplantation,

²Department of Pathology, Laboratory Medicine, Transfusion Services and Immunohematology,

³Department of Urology and Transplantation, and

⁴Anesthesia and Critical Care, Institute of Kidney Diseases and Research Center, Dr. HL Trivedi Institute of Transplantation Sciences (IKDRC-ITS),

Ahmedabad

, India

Address correspondence to

Dr. Vivek Kute

, Department of Nephrology and Clinical Transplantation, Institute of Kidney Diseases & Research Centre, Dr. HL Trivedi Institute of Transplantation Sciences (IKDRC- ITS), Civil Hospital Campus,

Ahmedabad 380016, Gujarat

, India. Tel.: +91 79 22687000; Fax: +91 79 2268 5454; E-mail: drvivekkute@rediffmail.com

Abstract

Background: Kidney paired donation (KPD) is feasible for any center that performs living related donor renal transplantation (LRDRTx). Lack of awareness, counseling and participation are important hurdles in KPD patients with incompatible donors. Materials and methods: This is an institutional review board approved study of 10 ESRD patients who consented to participate in the KPD transplantation at our center. All the surgeries were carried out on the same day at the same center on the occasion of World Kidney Day (WKD) (14 March 2013). All recipients had anatomic, functional and immunological similar donors. Results: KPD were performed to avoid blood group incompatibility (n = 8) or to avoid a positive crossmatch (n = 2). None of the patients experienced delayed graft function and surgical complications. At 3 month follow-up, median serum creatinine was 1 (range 0.6 to 1.25) mg/dL and two patients developed allograft biopsy-proven acute rejection and responded to antirejection therapy. Due to impact of our awareness activity, 20 more KPD patients are medically fit for transplantation and waiting for permission from the authorization committee before transplantation. Conclusion: This is a report of 10 simultaneous KPD transplantations in a single day in a single centre on WKD raising awareness of KPD. KPD is viable, legal and rapidly growing modality for facilitating LRDRTx for patients who are incompatible with their healthy, willing LRD.

Read More: http://informahealthcare.com/doi/abs/10.3109/0886022X.2013.823997

Farmers in India petition to be allowed to sell organs

I (would like to) assume that this story from India only concerns sale of live kidneys for transplantation, but it isn't completely clear to me, given the mention of suicides due to debt:

Allow us to sell our organs to repay our debts, farmers tell PM

"Unable to repay bank loans and to highlight their miserable plight, a group of farmers from Haryana have sought permission from Prime Minister Manmohan Singh to allow them to sell their vital organs.

"The farmers' group who held a rally at Kurukshetra on Monday under the aegis of Bharat Kisan Union (Tikait), held placards displaying a rate list of their organs.

"Later, 33 farmers handed over a letter to the Kurukshetra Tehsildar to be forwarded to the Prime Minister, BKU's state unit chief Gurnam Singh said on Tuesday.

"We are left with no other option, but to sell our vital organs. Over 20,000 farmers have ended their lives across the country due to debt burden. At least, selling our organs would enable us to repay the debt and live for a few years more and feed our families," he said."

HT: Sangram Kadam

*****************
We'll be traveling in India in the coming days, so at least some of my blog posts will be from inventory...

Experimental Economics at the Stanford SITE workshop: Aug 23-25 2013

I will be in India, but it looks like I'll be missing a great conference.

Stanford Institute for Theoretical Economics Summer 2013 Workshop
	Segment 7:Experimental Economics August 23, 24 and 25, 2013. Organized by Lise Vesterlund, University of Pittsburgh and Lucas Coffman, The Ohio State University; John Beshears, Graduate School of Business, Stanford University, and Charles Sprenger, Alvin Roth and Muriel Niederle, all Stanford University.

Friday, August 23

8:15 - 8:45 Breakfast

8:45 - 9:00 Welcome

9:00 - 10:00 Decisions Under Uncertainty and Ambiguity
Stochastic Choice and Hedging presented by Pietro Ortoleva, Columbia University
No Two Experiments are Identical presented by Yoram Halevy, University of British Columbia

10:00 - 10:30 Coffee

10:30 - 12:00 Foundations of Game Theory and Strategy
Epistemic Foundations for the Failure of Nash Equilibrium presented by P.J. Healy, The Ohio State University
A Generalized Winner's Curse: An Experimental Investigation of Complexity and Adverse Selectionpresented by Gary Charness, University of California, Santa Barbara
Endogenous Depth of Reasoning presented by Antonio Penta, University of Wisconsin, Madison and co-authored with Larbi Alaoui, Universitat Pompeu Fabra and Barcelona GSE

12:00 - 2:00 Lunchtime discussion

2:00 - 3:00 Communication and Influence (Lab)
Interpersonal Influence presented by Lucas Coffman, The Ohio State University and co-authored withPaul Niehaus, University of California, San Diego
Less Is More: Communication Costs and Team Performance presented by Zachary Grossman,University of California, Santa Barbara

3:00 - 3:30 Coffee

3:30 - 4:30 Shorter Session 1
Institutions Build Intuitions: Evolving Cultures of Cooperation and Defection in the Laboratorypresented by Alexander Peysakhovich, Harvard University
Intuitive Generosity and the Inability to Draw Inference from Decision Time presented by María P. Recalde, University of Pittsburgh
Backward Induction in the Finitely Repeated Prisoner's Dilemma: Experimental Evidence presented by Sevgi Yuksel, New York University
Rationality and Consistent Beliefs: Theory and Experimental Evidence presented by Terri Kneeland,University of British Columbia

4:30 - 6:00 Informal Exchange

6:00 Continued discussion and dissemination of technical knowledge during dinner

Saturday, August 24

8:30 - 9:00 Breakfast

9:00 - 10:00 Developments in Fairness
Social observation Increases Prosociality of Choices and Visual Attention presented by Stephanie W. Wang, University of Pittsburgh
The Value of Information and the Role of Fairness in Bargaining presented by Judd B. Kessler, The Wharton School

10:30 - 11:30 Communication and Influence (Field)
Can a Small Nudge Affect Job Choice? Experimental Evidence from Teach for America presented byClayton Featherstone, University of Pennsylvania
Fundraising Through Online Social Networks: a Field Experiment on Peer-to-Peer Solicitationpresented by Ragan Petrie, George Mason University

11:30 - 1:30 Lunchtime discussion

1:30 - 2:30 State Dependent Choice
Time and State Dependence in an Ss Decision Experiment presented by Ryan Oprea, University of British Columbia, and co-authored with Jacopo Magnani and Aspen Gorry, both University of California, Santa Cruz
Rational Inattention and State Dependent Stochastic Choice presented by Andrew Caplin, New York University

2:30 - 3:00 Coffee

3:00 - 4:00 Prosociality and Effort Provision
Why Do People Volunteer? An Experimental Analysis of Preferences for Time Donations presented byJonathan Meer, Texas A&M University
Revisiting Gift-Exchange: Theoretical Considerations and a Field Test presented by Rosario Macera Parra, Universidad Catolica de Chile, and co-authored with Constanca Esteves-Sorenson, Yale University School of Management

4:00 - 4:15 Short Break and Informal Exchange

4:15 - 5:15 Shorter Session 2
Symmetry in Cold-to-Hot and Hot-to-Cold Valuation Gaps presented by Geoffrey Fisher, California Institute of Technology and co-authored with Antonio Rangel, also California Institute of Technology
The Realization Effect: Risk-Taking After Realized Versus Paper Losses presented by Alex Imas,Carnegie Mellon University
Is Response Time Predictive of Choice? An Experimental Study of Threshold Strategies presented byIsabel Trevino, New York University and co-authored with Andrew Schotter, also New York University
Correlation Neglect in Belief Formation presented by Florian Zimmermann, University of Bonn and co-authored with Benjamin Enke, also University of Bonn

6:00 Continued discussion and dissemination of technical knowledge during dinner

Sunday, August 25

9:00- 9:30 Breakfast

9:30 - 10:30 Sustained Cooperation
Dissolution of Partnerships in Infinitely Repeated Games presented by Alistair J. Wilson, University of Pittsburgh
Long-Term Commitment and Cooperation presented by Frédéric Schneider, Zurich

10:30 - 11:00 Coffee

11:00 am - 12:00 Inequality and Group Behavior
Inequality and Relative Ability Beliefs presented by Jeffrey Butler, EINAUDI
Equilibrium Tax Rates and Income Redistribution: A Laboratory Study presented by Marina Agranov,California Institute of Technology, and co-authored with Thomas R. Palfrey, also California Institute of Technology

12:00 Lunchtime discussion

Law firm hiring bonuses for supreme court clerks

Above the Law has the story:

It’s Official: Supreme Court Clerkship Bonuses Hit A New High

By DAVID LAT

There hasn’t been much major good news on the associate compensation front over the past few years — since, say, January 2007. But recent weeks have brought pockets of minor good news for limited constituencies. Green shoots, anyone?

In Miami, Greenberg Traurig raised starting salariesby 16 percent, from $125,000 to $145,000. In New York, Sullivan & Cromwell and Skadden Arps started offering $300,000 signing bonuses to Supreme Court clerks.

And now $300K bonuses for SCOTUS clerks have spread, to other law firms in other cities. Consider this the new going rate for top-shelf talent….

Multiple clerks from the October Term 2012 class have received offers of $300,000 signing bonuses, from the following firms:

• Gibson Dunn
• Jones Day
• Munger Tolles
• Paul Weiss
• Skadden Arps
• Sullivan & Cromwell

And The Economist follows up: The curiously strong market for Supreme Court clerks

AMERICA’S chief justice earns $224,618 a year. The other eight Supreme Court judges pocket $214,969. Nice work if you can get it, but paltry compared with the sums law firms are offering to the judges’ clerks—lawyers in their mid-to-late twenties who take a year-long post—to secure their services.

Earlier this month two big firms, Skadden Arps and Sullivan & Cromwell, set a new record in the bidding war by offering signing bonuses of $300,000. Combined with the base salary for third-year “associates” (the rank at which they typically enter a firm) and a modest end-of-year bonus, clerks can now take home $500,000 in their first year of private employment.
...
Perhaps the main reason for the ongoing bidding war is the inflexibility of pay scales at the law firms. The industry has barely budged from an age-old practice in which those on the lower rungs of lawyerdom are paid strictly according to their years of experience. This rule does not apply to court clerks’ signing bonuses, so these are a means of buying in talent without breaking a professional taboo. It would of course be more sensible to scrap such “lockstep” pay scales entirely. Jones Day, a prominent Washington firm, has done so. But lawyers are creatures of habit, and few other firms have followed.

Clearing: the scramble for British university admissions begins today

Admissions offers in Britain are (often) contingent on exam results, and today the A-level exam results are publiished, and the process known as Clearing begins. The Telegraph has the story (and apps to guide students through the process).
Clearing 2013: How to play the system
If you don’t get the A-level grades you want on Thursday, don’t panic. Let Andrew Marszal and the Telegraph guide you through clearing and beyond

While this particular “due date” is certain – A-level results will be published tomorrow come rain or shine – the outcome is anything but.

Based on numbers from previous years, we know that by tomorrow morning around 350,000 students will be celebrating, having secured the grades they needed to meet their university offers.

We can even speculate that one or two of them will leap joyfully into the air, shamelessly flourishing their straight A* grades for local press photographers.

But for a significant proportion of would-be undergraduates, the end of the long wait only marks the beginning of university clearing.

Once the dust had settled last year, some 167,000 teenagers found themselves eligible for clearing – the process which matches students who don’t have the university offers they want with courses that still have vacancies.

With overall application numbers slightly up for this year’s courses, it’s likely that figure could be exceeded this week.

And even those who have gained or exceeded the required grades will want to keep an eye on clearing – there is still the option of switching to a more competitive course through the parallel “adjustment” process, which carries the advantage of not having to give up your existing offer while you shop around for a better course.

So that’s why, with hundreds of thousands of teenagers making potentially life-altering decisions in the space of just a few days or even hours after receiving their results, the Telegraph has put together a range of exclusive tools to help you negotiate your application. As the exclusive media partner of Ucas, all course vacancy listings will be available only with this newspaper in England and Wales, starting from the morning of A-level results day. There will be further listings published free with your newspaper on August 16, 17 and 29 and September 5.

But bear in mind that clearing places will come and go across the clearing period until September 30, as people turn down offers and universities fill places.
**************

Here's a helpful graphic of whhere the vacant places are: http://www.telegraph.co.uk/education/universityeducation/clearing/10242726/Clearing-2013-graphic-which-universities-have-places.html

College admissions as the cohort of high school grads starts to shrink

The NY Times had a story about admissions practices in a time of declining enrollments: College Enrollment Falls as Economy Recovers, that has been followed up by a story in Inside Higher Ed, The Hard (and Late) Sell, whose URL says more that its headline does: http://www.insidehighered.com/news/2013/07/29/some-colleges-recruit-students-who-have-already-accepted-offers-elsewhere

"Colleges should "not knowingly recruit students who are enrolled, registered, have initiated deferred admission, or have declared their intent, or submitted contractual deposits to other institutions," says the Statement of Principles of Good Practice of the National Association for College Admission Counseling. (The statement does not have legal power, but is a respected ethics code for the admissions profession.)

"So more than a few admissions officers and high school counselors did a double-take when they read in The New York Times Friday that Loyola University in New Orleans this summer "made a flurry of calls to students who had been accepted but had decided to go elsewhere, and had even paid deposits to other colleges." Loyola is among a number of colleges that this year were seriously below their targets for a freshman class for the fall, and the Times cited that strategy (which would seem to directly violate the NACAC statement) as one being tried. And so counselors did what they generally do when they learn of violations of their code of conduct: they asked NACAC to investigate.

"Loyola says that its officials were misquoted by the Times (more on that later) and that it strictly abides by the NACAC guidelines. But it also turns out that some other colleges have been going after students who have made deposits and commitments elsewhere, in violation of the NACAC guidelines."

More on suicide bombing as a repugnant transaction

I recently blogged about suicide bombing as a repugnant transaction, in the sense that while most of the world condemns it, there are communities or parts of communities that encourage and celebrate it. Now Tyler Cowen blogs about the movie "The Attack" (by a Lebanese director, but banned throughout the Arab world as portraying Israeli bombing victims too sympathetically) and points to this review in the Washington Post: ‘The Attack’: Lebanese director’s film about suicide bombing gets Israeli premiere

"Banned by Lebanon, ignored by Arab countries and praised by U.S. critics, the suicide-bomber drama “The Attack” finally got a splashy sold-out Middle East premiere — in Jerusalem.

"Many people settling into their seats at the recent Jerusalem Film Festival screening in the plush Cinematheque, which overlooks the Old City, had lived through the years when Palestinian suicide bombings roiled Israeli society, killing hundreds of people in crowded cafes, buses and markets.

"Now, as the theater grew dark, Israelis were asked to examine their country’s security equation through the eyes of Amin Jafaari, an award-winning Israeli surgeon of Palestinian background who is shocked to discover that his beautiful wife is a suicide bomber, responsible for a blast at a Tel Aviv cafe that claims 17 victims, including 11 children.

"At first, Jafaari is disbelieving and outraged. Eventually he heads to the Palestinian West Bank city of Nablus to find out how she could have done this.

"There, he finds his wife celebrated as a martyr in posters and handbills, and by hostile extremists who order him out of a mosque. Even his relatives are proud of her. His wife’s young co-conspirator struggles to explain how Palestinian civilian casualties in an Israeli army attack could motivate him to orchestrate such a heinous act.