Thursday, October 20, 2016

Normative Ethics and Welfare Economics at HBS, and Behavioral Ethics, also at HBS (at the same time:)

There are two (competing) conferences on ethics at Harvard this weekend, one on Friday and Saturday and the other on Friday, both at HBS.

I'll be speaking at this one:

2016 Normative Ethics and Welfare Economics Conference
October 21-22, Harvard Business School
Organizers: Itai Sher and Matt Weinzierl

All sessions will take place in the Chao Centerroom 340
Transportation to the HBS campus from the Hyatt Regency Cambridge Hotel will be provided.
Oct 21

A Harvard University shuttle bus will depart the Hyatt at 8:00 am

8:15-8:45

Breakfast

8:45-9:00

Opening Remarks

9:00-10:30

Population Ethics

Partha Dasgupta and Johann Frick
Discussant: Glen Weyl

Papers:
Birth and Death
Socially Embedded Preferences, Environmental Externalities, and Reproductive Rights
10:30-11:00

Break

11:00-12:30

Reasons and Preferences

Justin Snedegar and Itai Sher
Discussant: Caspar Hare

Papers:
Overlapping Reasons

Comparative Value and the Weight of Reasons
12:30-2:00

Lunch

2:00-3:30

Public Reason

Matt Weinzierl and Sean Ingham
Discussant: Lucas Stanczyk

Papers:
A Dilemma for Theories of Public Reason
A Welfarist Role for Nonwelfarist Rules: An Example with Envy
3:30-4:00

Break

4:00-5:30

Forbidden Transactions

Michael Sandel and Al Roth
Discussant: Stefanie Stantcheva
5:30-6:00

Break

6:00-8:30

Dinner for Speakers & Discussants

Location TBA

Transportation will be provided
.
Oct 22

A Harvard University shuttle bus will depart the Hyatt at 8:00 am
8:30-9:00

Breakfast

9:00-10:30

Business Ethics

10:30-11:00

Break

11:00-12:30

Behavioral Economics and Welfare Economics

John Doris, Julia Haas, and Dan Benjamin
Discussant: Ben Lockwood

Papers:
Moral Psychonomics
Reconsidering Risk Aversion
12:30-1:30 

Lunch​​

1:30 - 3:00

Prioritarianism

Matthew Adler and Hilary Greaves
Discussant: Jerry Green

Papers:
Justice, Claims and Prioritarianism: Room for Desert?
Antiprioritarianism
3:00-3:30 

Break

3:30-5:00 

Closing Panel

Marc Fleurbaey, Dan Hausman, Greg Mankiw, Tim Scanlon
Moderator: Nathan Hendren

Adjourn




************************
It turns out that there is a lot of interest in ethics at Harvard, and so there is another ethics conference at the same time, also meeting at HBS:



Symposium - "Behavioral Ethics: Philosophical and Psychological Perspectives" Featuring Peter Singer






Date: 

Friday, October 21, 2016 (All day)

See also: Ethics


Location: 

Spangler Auditorium, Harvard Business School

HKS SAFRA HBS logos
Organizers: Max Bazerman and Joshua Greene
Sponsors: Edmond J. Safra Center for Ethics, Harvard Business School, Center for Public Leadership at Harvard Kennedy School
This symposium will integrate psychology and philosophy to explore a goal state for ethical behavior, why we fail to achieve that goal state, and what society can do create more ethical behavior.
Event Participant Bios

9:30 a.m. - 10:00 a.m.
Welcome
Danielle Allen and Max Bazerman

10:00 a.m. - 12:00 p.m.         
What does the greatest good look like in contemporary society?
Peter Singer, "What is the Most Good We Can Do?"
Joshua Greene, TBD
Steven Pinker, “Measuring and Defining Progress”

12:00 p.m. - 1:00 p.m.           
Lunch Break

1:15 p.m. - 2:45 p.m.             
Why don’t we get there?
Mahzarin Banaji, "The Difficulty with Discretion"
Fiery Cushman, “Is Non-Consequentialism a Feature or a Bug?”
Michael Norton, "Spreading the Wealth (and Health): Evidence for a Universal Desire for Greater Equality"
3:00 p.m. - 4:30 p.m.
What can be done to change behavior (nudging and beyond)?
Francesca Gino, “To Do or Not To Do: Motivating Ethical Behavior”
Iris Bohnet, "Gender Equality by Design"
Max Bazerman, "Prescriptions for Creating Greater Good"

4:30 p.m. - 4:45 p.m.             
Closing Statement
Max Bazerman

Wednesday, October 19, 2016

Foreign students recruited to Canadian Universities

Inside Higher Ed reports on concerns that universities' eagerness for high tuition payments is leading to unqualified students are being recruited:
Corruption in Higher Ed: Canada in the Crosshairs
It is overwhelmingly evident that there is a remarkable and callous disregard for academic ethics and standards in a scramble by Canadian universities to sign up foreign students.

"It is overwhelmingly evident that in the last two decades we have witnessed first-hand a remarkable and callous disregard for academic ethics and standards in a scramble by Canadian universities and colleges to sign up foreign students, who represent tens of millions of dollars to their bottom lines.
We have been in a school auditorium in China and listened to the school owner tell prospective parents that the Grade 12 marks from the Canadian provincial school board program can be manipulated to secure admission for their children into Canadian universities. This, while the Canadian teachers sat oblivious to the presentation in Chinese.
In hundreds of our own interaction with students who completed the Canadian provincial school board’s curriculum in China and who achieved grades of 70% and higher in their English class have been unable to achieve even a basic level of English literacy in the written tests we have administered.   But when the largest country of origin for incoming international students and revenue is China - the Canadian universities admitting these students salivate over the dollars and focus less on due diligence.
We were once asked by a university on Canada’s west coast to review 200 applications from Saudi Arabia, in order to identify the two or three Saudi students who were actually eligible for conditional admission to that university's undergraduate engineering program. But the proposal was scuttled by the university's ESL department that wanted all 200 to enroll in its language courses. It insisted on and managed conditional admissions for all 200. It’s common at Canadian universities for the ESL program “tail” to wag the campus “dog” when it comes to admissions. In fact, recent Canadian government regulations have been proposed to crack down on this practice as it is an affront to academic integrity."

Tuesday, October 18, 2016

Organ donation rates in Canada

http://www.cbc.ca/news/health/organ-donation-1.3755193

"Despite the progress, Canada lags behind "top-tier" countries such as the U.S. and Spain, where deceased donation rates exceed 30 donors per million population. Canada's rate currently stands at 18.2 donors per million population, up from 14.1 for that measure in 2006.

Spain fostered a culture of donation over three decades and Canada is now embarking on creating one, said Dr. Peter Nickerson, vice-dean of research at the University of Manitoba and a medical adviser to CBS.

About 21 per cent of donations come after cardiac death, said Kimberly Young, director of donation and transplantation at CBS. Before those programs were implemented, most deceased organ donations occurred after catastrophic brain injury. Now organs can be donated after the heart stops.

Young also acknowledged the hundreds of Canadians who've chosen to become living donors, many without ever knowing the recipient.

The living donation rate hasn't increased in the past decade, Young said. One of the reasons it hasn't decreased, as in some countries, is due to the national paired kidney donation program. It pairs compatible donors, including those in different parts of the country. Doctors consider kidney donations the best treatment for end-stage kidney disease.

Lung transplants are in the top tier of comparable wealthy countries, thanks to pioneering research at lung retrieval centres such as Toronto General Hospital, Nickerson said. Likewise, liver donation rates are high. Heart access is relatively equal, he said.

There have also been significant improvements in access to transplants among those who have the hardest time finding a donor match because of a highly sensitive immune system. "

Monday, October 17, 2016

Who Gets What and Why, in Korean

Here is the Korean translation of my book Who Gets What and Why:
Who Gets What-and Why in Korean
Eun Jeong Heo tells me that the title in Korean is "Matching: a strong drive to uncover hidden markets"

Eun Jeong points me to these two URL's where you can buy the book:

Sunday, October 16, 2016

Two papers on repugnance and payments for body parts

Here's an NBER paper by Nicola Lacetera, which includes this in the acknowledgments: "I dedicate this paper to the memory of my friend Julia Fletcher, whose life could have been longer if a bone marrow match were found for her."

Incentives and Ethics in the Economics of Body Parts

Nicola Lacetera

NBER Working Paper No. 22673
Issued in September 2016
NBER Program(s):   HE      PE 

Research shows that properly devised economic incentives increase the supply of blood without hampering its safety; similar effects may be expected also for other body parts such as bone marrow and organs. These positive effects alone, however, do not necessarily justify the introduction of payments for supplying body parts; these activities concern contested commodities or repugnant transactions, i.e. societies may want to prevent certain ways to regulate a transaction even if they increased supply, because of ethical concerns. When transactions concern contested commodities, therefore, societies often face trade-offs between the efficiency-enhancing effects of trades mediated by a monetary price, and the moral opposition to the provision of these payments. In this essay, I first describe and discuss the current debate on the role of moral repugnance in controversial markets, with a focus on markets for organs, tissues, blood and plasma. I then report on recent studies focused on understanding the trade-offs that individuals face when forming their opinions about how a society should organize certain transactions.

******

And here's another, by Julio J. Elias, Nicola Lacetera, and Mario Macis

Efficiency-Morality Trade-Offs in Repugnant Transactions: A Choice Experiment

Julio J. EliasNicola LaceteraMario Macis

NBER Working Paper No. 22632
Issued in September 2016
NBER Program(s):   HE   LE   PE 
Societies prohibit many transactions considered morally repugnant, although potentially efficiency-enhancing. We conducted an online choice experiment to characterize preferences for the morality and efficiency of payments to kidney donors. Preferences were heterogeneous, ranging from deontological to strongly consequentialist; the median respondent would support payments by a public agency if they increased the annual kidney supply by six percentage points, and private transactions for a thirty percentage-point increase. Fairness concerns drive this difference. Our findings suggest that cost-benefit considerations affect the acceptance of morally controversial transactions, and imply that trial studies of the effects of payments would inform the public debate.

Saturday, October 15, 2016

A look into how transplant centers are monitored (and organs are allocated)

Here's a press release saying that the University of Pittsburgh's iconic transplant center has been taken off probation by UNOS. The reason they were on probation is interesting:
University of Pittsburgh Medical Center released from probation

"The Board had placed UPMC on probation in June 2015. Its lung transplant program had an unusually high number of instances where they accepted lung offers for one transplant candidate, then transplanted another candidate at the program. This inappropriately limited opportunity for consideration of other candidates identified on the match run."

Friday, October 14, 2016

A kidney donor at 18 who is now a medical student feels he didn't give sufficiently informed consent (and some reactions)

Here's the story in the Washington Post: At 18 years old, he donated a kidney. Now, he regrets it.

"Five years after the surgery, when I was 23 and getting ready to go to medical school, I began working in a research lab that was looking at kidney donors who had gone on to develop kidney failure. For that research, I talked to more than 100 such donors. In some cases, the remaining kidneys failed; in others, the organ became injured or developed cancer. The more I learned, the more nervous I became about the logic of my decision at age 18 to donate.
"And then in 2014, a study looking at long-term risks for kidney donors found that they had a greater risk of developing end-stage renal disease. Another study that same year raised the possibility that they may face a heightened risk of dying of cardiovascular disease and all-cause mortality (although this point remains controversial).
"Other studies and surveys, though, suggest that the risk, while greater, isstill fairly small.
"The truth is, it is hard to get good numbers about what happens to donors. Hospitals are required to follow them for only two years post-donation, which does not catch such long-term complications as chronic kidney disease, cardiovascular issues or psychiatric issues. There is no national registry for kidney donors or other large-scale means of tracking long-term outcomes."
************
Here are some responses posted on Trio (TRANSPLANT RECIPIENTS INTERNATIONAL ORGANIZATION)

Response to living kidney donation regret Washington Post news story

CATEGORIES // General InterestUNOS News
Response to living kidney donation regret Washington Post news story
A recent news story appearing in the Washington Post talked about an 18 year old living kidney donor's concerns and regret for that donation.  In a response to that, TRIO board member, Josh Morrison, offers his own thoughts on that concern based on his altruistic living kidney donation.  Photo is of Josh and his unrelated recipient, John, whose story is shared in Josh's article linked below (along with a link to the original 'regret' story).

*********
Here's a different take on nondirected donation (and the resulting chains...)
These six people donated their kidneys to complete strangers and saved 140 lives in the process — here’s why

Thursday, October 13, 2016

Nondirected donor kidney exchange chains come to the UK

In the U.S., many kidney exchange transplants now occur in chains begun by nondirected donors. Rule changes in Britain may allow transplants to increase this way too

Progress is being made in kidney exchange in the UK. The Mirror has the story:
Kidney 'triple transplant chain' rule change brings hope to thousands and has already saved 48 people

"Rule changes last year mean more healthy kidneys are available – bringing fresh hope to ­thousands of patients on the waiting list.

"From April 2015, it became possible for a stranger to give up a kidney and spark a series of donations. We have discovered that for each of 16 such donations, three people received a transplant.

"Previously, the chain was limited to two people who were in the National Living Donor Sharing Scheme, set up to allow pooling of organs from willing donors not a match for their own sick loved ones.

"Under triple transplant chains, a stranger’s kidney is allocated to the first recipient, a patient who is enrolled in the sharing scheme.

"In turn, the first recipient’s friend or relative, who wants to donate to their loved one but cannot because they are not a match, donates to another patient in the scheme, the second recipient.
...
"Any adult can ­volunteer to be ­considered an altruistic donor. You must be over 18 in England, Northern Ireland and Wales, and over 16 in Scotland.
The 16 Brits who gave their kidneys to patients they did not know first had several months of physical and psychological tests at their local transplant centre to ensure they were able to safely donate, and to confirm which recipients would be a suitable match."

Wednesday, October 12, 2016

Are promises made to living donors being upheld?

Here's a press release from the American Society of Nephrology on a forthcoming article:
Are promises made to living donors being upheld?

  • Most prior living kidney donors in the United States who later need a transplant receive one quickly, but some are not readily given the priority they were promised when they donated.
  • About 40 to 50 prior living donors in the United States are added to the kidney waiting list each year, and more than 130,000 living kidney donors have donated over the past several decades.
Washington, DC (September 1, 2016) -- A new study finds some shortcomings by the transplant community in providing prompt access to transplantation for living kidney donors who later develop kidney disease and need a transplant. Donors are told that they will have priority for transplantation if they ever need a kidney, so any delays in providing this access must be addressed. The study's results appear in an upcoming issue of the Clinical Journal of the American Society of Nephrology (CJASN).
Jennifer Wainright, PhD (United Network for Organ Sharing, or UNOS) and her colleagues examined how consistently living donors get transplant priority in a timely fashion, using information from the Organ Procurement and Transplantation Network (OPTN), which includes data on all donors, wait-listed candidates, and transplant recipients in the United States. UNOS is the private, non-profit organization that manages the nation's organ transplant system under contract with the federal government..
Among the major findings:
  • There were 210 prior living donors added to the OPTN kidney waiting list between January 1, 2010 and July 31, 2015.
  • As of September 2015, 167 of the donors received deceased donor transplants, 6 received living donor transplants, 2 died, 5 were too sick to transplant, and 29 were still waiting.
  • Median waiting time to receive a deceased donor transplant for prior living donors was 98 days.
  • Only 40.7% of the donors were listed before they began dialysis; 68.3% were in inactive status, which means they were not eligible for organs, for <90 1-2="" 17.6="" 5.4="" 8.6="" 90-365="" and="" days="" for="" years="">2 years.
  • Median time for prior living donors waiting in active status before receiving priority was 2 days; 67.4% received priority within 7 days after activation, but 15.4% waited 8-30 days, 8.1% 1-3 months, 4.1% 3-12 months, and 5.0% waited >1 year in active status for priority.
  • After receiving priority, most were transplanted quickly, and the median time in active status with priority before deceased donor transplant was 23 days.
"We found that most prior living kidney donors on the kidney waiting list are transplanted quickly, but some spend periods of time waiting in inactive status. Others wait weeks or months on the waiting list without priority access, which must be requested by their transplant hospital," said Dr. Wainright. "UNOS has developed procedures and education that aims to reduce these delays in the future."

************
HT: Philip Held

Tuesday, October 11, 2016

John F. Nash, Jr.'s 1994 Nobel Prize in Economic Sciences medal and memorabilia: Auction at Sotheby's

 Here's the auction page:
John F. Nash, Jr.'s 1994 Nobel Prize in Economic Sciences 
17 OCTOBER 2016 | 2:00 PM EDT | NEW YORK,
Estimate  2,500,000 — 4,000,000  USD.

There are some essays and paragraphs from colleagues and relatives at the auction link.
Here's a 3 minute video from Sotheby's, advertising the auction...



***************
Update:
I'm guessing that this results page means that the auction closed without a sale (perhaps because the reserve price was not reached...):
http://www.sothebys.com/en/auctions/results.results.sale.pdf/2016/john-f-nash-jrs-1994-nobel-memorial-n09586.pdf

JOHN F. NASH, JR.'S 1994 NOBEL PRIZE IN ECONOMIC SCIENCES October 17, 2016 Sale Number N09586 Sale Total (Including Buyer's Premium) 0 USD

Sunday, October 9, 2016

Family consent to deceased donation remains a concern in Britain

The Guardian has the story
Organ donation rates for transplants still too low in UK, says NHS
Consent rate one of lowest in Europe, with black, Asian and ethnic minority communities of particular concern

"A record number of organs were donated and transplanted in the UK in 2015-16 but the consent rate is still one of the lowest in Europe, with a worrying shortfall of donors from black or Asian communities.
In the 12 months to the end of March, 1,364 people became organ donors when they died and their donations resulted in 3,519 transplants taking place, figures published on Thursday show.
The consent rate stood at 62%, slightly up on 2012-13 when it was 57%, but well short of the target of 80% by 2020 with the biggest obstacle being family refusal, mostly when they were unaware of their deceased relative’s intentions.
The consent rate was much lower (34%) among potential black, Asian and minority ethnic (BAME) donors, which is of particular concern as 26% of the current waiting list are BAME."

Saturday, October 8, 2016

More on kidney black markets in India

Top Indian Hospital Complicit In Lucrative Black Market for Human Organs

"Five doctors from one of India’s most distinguished hospitals were charged ... with performing illegal kidney transplants connected to an organ harvesting ring.

"The doctors, including a medical director and a chief executive, worked out of the prestigious L.H. Hiranandani Hospital in Mumbai. The trafficking racket was discovered in July after police were tipped off by poor villagers from Gujarat state who sold their kidneys.
...
"Unrelated donors can donate organs if the government confirms that no money has changed hands in the transaction. People can also source organs from cadavers or brain-dead patients, with the family’s permission, but these options are not common.
...
"A similar ring was broken up in June at the Indraprastha Apollo Hospital in New Delhi. Handlers at Indraprastha forged documents to show that recipients were related to donors. In reality, donors were paid about 300,000 Rupees (roughly $4,500) for their kidneys, which were then resold at a high profit.

*********

see earlier post:

Tuesday, June 21, 2016

Friday, October 7, 2016

Drug deaths and deceased organ donors

Traffic accidents are down, but drug deaths are up, not just in total numbers but among deceased organ donations. ("Hypoxia" has entered my vocabulary in the last year...)
The NY Times has a story:
As Drug Deaths Soar, a Silver Lining for Transplant Patients

"As more people die from overdoses than ever before, their organs — donated in advance by them or after the fact by their families — are saving lives of people who might otherwise die waiting for a transplant.
...
"So far this year, 69 people in New England who died from an overdose have donated their organs, according to the New England Organ Bank. They account for 27 percent of all donations in the region, up sharply from 2010, when eight donors, or 4 percent, were drug users.

Because doctors can use multiple organs from each person, these 69 deceased drug users saved the lives of 202 other people, according to the organ bank.

Nationwide, more than 790 deceased drug users have donated organs this year, accounting for about 12 percent of all donations. That is more than double the 340 drug users who donated in 2010, or about 4 percent of the total, the organ bank said.

“It’s an unexpected silver lining to what is otherwise a pretty horrendous situation,” said Alexandra K. Glazier, chief executive of the New England Organ Bank, which procures organs for transplant in the six New England states and Bermuda.

Drug users have long been considered high risk because they often carry diseases like H.I.V. or hepatitis C. But at a time of a severe organ shortage, the volume of organs available from overdose deaths has led transplant centers to try to use them instead of throwing them away. With rigorous screening, officials say, the risk of transplanting an infected organ is small. Moreover, they say, hepatitis C can be treated if not cured and H.I.V. made manageable. Either is usually preferable to death.

“We know now that the mortality rate of being on the waiting list for several years is higher than that of getting an organ with an infection that is treatable,” said Dr. Robert Veatch, a professor emeritus of medical ethics at Georgetown University, who has written extensively about organ transplants.
...
"Transplants were initially associated with deaths from car accidents, which is why organ donors are noted on driver’s licenses. But overdoses (47,000 in 2014) have surpassed car crashes (32,000 in 2014) as the leading cause of accidental death in the United States. The growing numbers of overdoses from synthetic opioids like fentanyl and carfentanil have only heightened the drug toll.

Drug users are now the fastest-growing category of donor. They rank fourth, behind donors who died of strokes, blunt injuries and cardiovascular problems.

But even as drug users are making a life-or-death difference for some recipients, the need for organs remains vast.

There are 120,000 people on the national wait list for transplants. While 85 people receive one every day, 22 others die every day before a match is found.

One advantage of drug users as donors is that they tend to be younger and healthier than other donors, said Dr. David Klassen, chief medical officer for the United Network for Organ Sharing, which administers the nation’s organ procurement network.
...
"Dying of an overdose, which usually occurs when oxygen cannot reach the brain, does not affect kidney function or other organs. The drugs and blood are flushed from the organs when they are removed from the body."

Thursday, October 6, 2016

Crossing borders in search of health, welfare, safety (video)

Here's the video of a short (20 minute) talk I gave at the U Chicago's Human Capital and Economic Opportunity Global Working Group conference on Market Design Perspectives on Inequality: Crossing borders in search of health, welfare, and safety . (My slides, which are hard to see in the video, are here.)

I speak mostly about Global kidney exchange, and then briefly about surrogacy and refugee resettlement.

Wednesday, October 5, 2016

Sohn Conference, San Francisco, Oct 5

I'll be speaking about market design to investment managers at a charitable conference today: Sohn San Francisco, October 5, 2016, Hyatt Regency San Francisco, 5 Embarcadero Center

"The Excellence in Investing for Children’s Causes Foundation (EICCF) supports underserved Bay Area students in 9th-12th grade to improve graduation rates and college acceptances. Inspired by the Sohn Conference Foundation and with their support, the EICCF created Sohn Conference San Francisco... Like the Sohn Conference New York, EICCF’s annual Sohn Conference San Francisco is an annual investment conference in which top money managers, academics, and celebrities offer insights and ideas for charity. We hope you’ll join us for another day of great discussions in support of a great cause.
Learn about the organizations we are benefiting this year. Click Here."

Here's the conference schedule.

Tuesday, October 4, 2016

Why might machine learning be unfair?

Hear Aaron Roth speak on this at Penn Law School, starting around minute 7:30 (you can control the video from under where the slides appear, and you can also speed it up--1.5x is still quite intelligible):

What is Machine Learning? And Why Might it be Unfair? at the Optimizing Government Workshop

Here's a slide I liked from minute 35, about why a simple classifier rule might be a better judge of a majority population than of a minority population, simply because there are a lot more data points for the majority. (+'s are people who paid back their loans, -'s did not, the trick is to predict who will pay based on observables, in this case number of credit cards and SAT scores. The orange population is in fact more credit worthy, but has overall lower SAT scores. If you can only use one classifier, the best one is the blue line: and it denies credit to all the orange folks. If you could take group membership into account and use two lines, you could also distinguish the credit worthy oranges...)


Monday, October 3, 2016

Unraveling of college sports recruiting--continued

Inside Higher Ed has the story:
Too Young to Commit?
Urging colleges to change a recruiting culture that targets middle schoolers, Ivy League announces proposals for curbing early recruitment of athletes.

"The Ivy League will announce today a series of proposals aimed at curbing early recruiting in college sports, urging other National Collegiate Athletic Association members to “change the culture of recruiting that forces prospective student-athletes to commit earlier and earlier.”
The proposed Division I rule changes, which would potentially be voted on at the NCAA’s annual meeting in January, would prohibit verbal offers from coaches to potential recruits until Sept. 1 of the student’s junior year of high school. The legislation would also prohibit players initiating or receiving phone calls with and from college coaches, and ban any recruiting conversations at camps or clinics until that date.
"Current NCAA Division I rules differ among sports, but they largely already prohibit players from receiving phone calls from a coach, going on official campus visits or getting an offer before their junior or senior year. Prospective athletes are allowed to initiate phone calls with coaches, however, and are allowed to visit campuses and meet with coaches prior to their junior year, as long as the trip is an unofficial visit not paid for by the institution.
...
"Harris pointed to increasing transfer rates in intercollegiate athletics as evidence athletes are making recruitment decisions too early. According to the NCAA, one-third of college athletes transfer to another program.
“There’s a lot of talk about there being a transfer problem,” Harris said. “Well, I would say a lot of the problem with transfers is the fact that we have individuals making decisions too soon that are too rushed.”
Early recruiting is especially prevalent in sports like women’s soccer and lacrosse, where some players are being recruited as early as middle school. An analysis by the New York Times and the National Collegiate Scouting Association in 2014 found that 36 percent of women’s lacrosse players who use the consulting firm to commit to colleges are doing so early, as are 24 percent of women’s soccer players.
The athletes cannot sign binding letters of intent at such an early age, but middle school students are increasingly announcing verbal commitments to specific institutions after receiving unofficial scholarship offers from coaches."

Sunday, October 2, 2016

Kidney exchange chains (a survey, including possibly the longest chain to date)

Here's a survey on non-simultaneous kidney exchange chains: Are Transplant Chains the Answer to Our Kidney Deficit? by Melissa Laracy

On long chains:
"Currently, the longest living kidney donor chain is the University of Alabama at Birmingham Kidney Chain. Started in December 2013, it has since grown to include 112 individuals, yielding a total of 56 kidney transplants as of December 2015."

See also "Celebrating the nation's longest kidney chain" at UAB

Saturday, October 1, 2016

The Econometrics of Matching Models by Pierre-André Chiappori and Bernard Salanié in the JEL

The Econometrics of Matching Models
Pierre-André Chiappori and Bernard Salanié
Journal of Economic Literature 2016, 54(3), 832–861

Abstract: Many questions in economics can be fruitfully analyzed in the framework of matching models. Until recently, empirical work has lagged far behind theory in this area. This review reports on recent developments that have considerably expanded the range of matching models that can be taken to the data. A leading theme is that in such two-sided markets, knowing the observable characteristics of partners alone is not enough to credibly identify the relevant parameters. A combination of richer data and robust, theory-driven restrictions is required. We illustrate this on leading applications.

Here is the opening paragraph:
"In October 2012, the Nobel prize was attributed to Al Roth and Lloyd Shapley
for their work on matching. Both the seminal Gale and Shapley (1962) paper and most of Roth’s work were concerned with allocation mechanisms when prices or other transfers cannot be used—what we will call nontransferable utility (NTU) in this survey. Gale and Shapley used college admissions, marriage, and roommate assignments as examples; Roth’s fundamental work in market design has led to major improvements in the National Resident Matching Program (Roth and Peranson 1999) and to the creation of a mechanism for kidney exchange (Roth, Sönmez, and Ünver 2004). While these are important economic applications, matching problems are much more pervasive. Market and nonmarket mechanisms such as auctions match agents with goods and buyers with sellers; agents match to each other in production teams, and production tasks are matched with workers; and in international trade, countries are matched with goods or varieties. Yet while the basic theory of matching was in place forty years ago, only recently has there been an explosion of empirical work in this area. Several developments have concurred to bring it to the attention of applied researchers."