Tuesday, June 4, 2013

2013 David Brooks vs 2011 David Brooks

David Brooks' column today opens:
Dylan Matthews had a fascinating piece about a young man named Jason Trigg in The Washington Post on Sunday. Trigg is a 25-year-old computer science graduate of the Massachusetts Institute of Technology who has hit upon what he thinks is the way he can do maximum good for the world. He goes to work each day at a high-frequency trading hedge fund. But, instead of spending his ample salary, he lives the life of a graduate student and gives a large chunk of his money away.

Trigg has seized upon the statistic that a $2,500 donation can prevent one death from malaria, and he figures that, over the course of a lucrative Wall Street career, he can save many lives. He was motivated to think this way by the utilitarian philosopher Peter Singer.

From the article, Trigg seems like an earnest, morally serious man, who, if he lives out his plan, could indeed help save many lives. But if you are thinking of following his example, I would really urge caution.
Now, as a matter of fact, I have no beef with that. If you want to follow Trigg's path, you should proceed with caution. As Brooks points out, it's probably hard to go through with the decision to donate half your income, and it probably does become harder over time, as you become acculturated. (On the other hand, none of the people Matthews profiled are actually hardcore trader types - they're quants or startup folks or analysts, which probably makes sense both dispositionally and strategically [since the folks involved are aware of the acculturation concern and don't want to burn out].)

Brooks has two other arguments against Trigg's decision. I was going to paraphrase but it's probably better to let him use his own words:
Second, I would be wary of inverting the natural order of affections. If you see the world on a strictly intellectual level, then a child in Pakistan or Zambia is just as valuable as your own child. But not many people actually think this way. Not many people value abstract life perceived as a statistic as much as the actual child being fed, hugged, nurtured and played with.

If you choose a profession that doesn’t arouse your everyday passion for the sake of serving instead some abstract faraway good, you might end up as a person who values the far over the near. You might become one of those people who loves humanity in general but not the particular humans immediately around. You might end up enlarging the faculties we use to perceive the far — rationality — and eclipsing the faculties we use to interact with those closest around — affection, the capacity for vulnerability and dependence. Instead of seeing yourself as one person deeply embedded in a particular community, you may end up coolly looking across humanity as a detached god.
Nothing in Matthews' article entails these conclusions, and I don't see any reason to believe that the people profiled in the article have in any way given up on attaching particular personal weight to the needs and desires of their loved ones. Brooks is mistaken to claim that it's rationality that drives that widening circle of care, rather than empathy, better understood. Larissa Macfarquhar has written movingly about utilitarian philosophers bursting into tears in her presence during abstract discussions of suffering. In one of these stories, she hits the nail on the head:
It turned out that what had made him cry was the idea of suffering. We had been talking about suffering in the abstract. I found that very striking. Now, I don’t think any professional philosopher is going to make this mistake, but nonprofessionals [**cough cough Brooks**] might think that utilitarianism, for instance (Parfit is a utilitarian), or certain other philosophical ways of think about morality, are quite unemotional, quite calculating, quite cold; and so because as I am writing mostly for nonphilosophers, it seemed like a good corrective to know that for someone like Parfit these issues are extremely emotional, even in the abstract.
So I think Brooks is substantially wrong about how the people who actually live this lifestyle approach it: they do feel the emotion of it, just for a far larger group of people than he's able to.

But even if Brooks is right so far, he hasn't yet really explained what's supposed to be so bad about taking this supposedly cold, rational approach.

That's the third argument:
Third, and most important, I would worry about turning yourself into a means rather than an end. If you go to Wall Street mostly to make money for charity, you may turn yourself into a machine for the redistribution of wealth. You may turn yourself into a fiscal policy.

But a human life is not just a means to produce outcomes, it is an end in itself. When we evaluate our friends, we don’t just measure the consequences of their lives. We measure who they intrinsically are. We don’t merely want to know if they have done good. We want to know if they are good.

That’s why when most people pick a vocation, they don’t only want one that will be externally useful. They want one that they will enjoy, and that will make them a better person. They want to find that place, as the novelist Frederick Buechner put it, “where your deep gladness and the world’s deep hunger meet.”

If you are smart, hard-working, careful and lucky you might even be able to find a job that is both productive and internally ennobling. Taking a job just to make money, on the other hand, is probably going to be corrosive, even if you use the money for charity rather than sports cars....

Making yourself is different than producing a product or an external outcome, requiring different logic and different means. I’d think you would be more likely to cultivate a deep soul if you put yourself in the middle of the things that engaged you most seriously. If your profoundest interest is dying children in Africa or Bangladesh, it’s probably best to go to Africa or Bangladesh, not to Wall Street.
The most jarring thing for me about this argument was how it contrasted with a previous column of Brooks' that I remembered quite well. Almost exactly two years ago, as I was getting ready to graduate from college, Brooks wrote an outstanding column on this very issue:
If you sample some of the commencement addresses being broadcast on C-Span these days, you see that many graduates are told to: Follow your passion, chart your own course, march to the beat of your own drummer, follow your dreams and find yourself. This is the litany of expressive individualism, which is still the dominant note in American culture.

But, of course, this mantra misleads on nearly every front....

Most successful young people don’t look inside and then plan a life. They look outside and find a problem, which summons their life. A relative suffers from Alzheimer’s and a young woman feels called to help cure that disease. A young man works under a miserable boss and must develop management skills so his department can function. Another young woman finds herself confronted by an opportunity she never thought of in a job category she never imagined. This wasn’t in her plans, but this is where she can make her contribution.

Most people don’t form a self and then lead a life. They are called by a problem, and the self is constructed gradually by their calling.

The graduates are also told to pursue happiness and joy. But, of course, when you read a biography of someone you admire, it’s rarely the things that made them happy that compel your admiration. It’s the things they did to court unhappiness — the things they did that were arduous and miserable, which sometimes cost them friends and aroused hatred. It’s excellence, not happiness, that we admire most.

Finally, graduates are told to be independent-minded and to express their inner spirit. But, of course, doing your job well often means suppressing yourself. As Atul Gawande mentioned during his countercultural address last week at Harvard Medical School, being a good doctor often means being part of a team, following the rules of an institution, going down a regimented checklist.

Today’s grads enter a cultural climate that preaches the self as the center of a life. But, of course, as they age, they’ll discover that the tasks of a life are at the center. Fulfillment is a byproduct of how people engage their tasks, and can’t be pursued directly. Most of us are egotistical and most are self-concerned most of the time, but it’s nonetheless true that life comes to a point only in those moments when the self dissolves into some task. The purpose in life is not to find yourself. It’s to lose yourself.
I think most people, Brooks included, have probably never talked to someone like Trigg or Jeff Kauffman or Julia Wise. When you see their arguments written, without much elaboration, it's all too easy to write them off as rationalist cranks, perhaps lacking the full depth of humanity that you and your loved ones obviously have. But what an insensitive and ungenerous reaction. Talking to them, or hearing Larissa Macfarquhar talk about them, it's clear that they lead exactly the kind of life that Brooks accurately saw fit to praise in his 2011 column: a life of moral seriousness, driven by a genuine altruistic concern for others, as well as all the prosaic obligations to friends, family, and colleagues that structure all of our everyday lives.

Contra 2013 Brooks' straw man, these people have not taken jobs they despise with people they hate in places they don't want to live. They live the generally healthy, happy, comfortable lives of urban young professionals, and to the extent I've discussed it with them, work on relatively interesting problems with extremely talented colleagues. Once they've reached a level of material well-being themselves, they've chosen to try to optimize their contributions to the wellbeing of others rather than to fully, exhaustively, pursue their own self-regarding passions. Their path is not the right one for everyone, and they'll often be the first to tell you that, but it is also a path that altruistic young people in the position to do so should seriously consider.

Even if Brooks were right and the people who Matthews profiled are, horror of horrors, treating themselves as means to the ends of others, what of it? Isn't it much better for the world, and for those who are least well off in it? Why should we concede to 2013 Brooks' demand that we ally ourselves with the privileged potential Wall Street financiers who may forego some modicum of personal flourishing rather than with the many more Against Malaria Foundation beneficiaries who will live far longer and substantially better lives as a result of being protected from malaria? 2011 Brooks saw the wisdom of losing yourself in a cause, and it's sad that the mere specter of money leaves 2013 Brooks so cold.

Full disclosure: Dylan Matthews' column features GiveWell, my employer, prominently.

Friday, May 31, 2013

Follow-up on deceased organ donation

Earlier this month, I wrote a post trying to estimate how many people would have to be added to the deceased organ donor registry to result in one additional actual organ donor. I concluded that "the impact of adding a million people to the organ donor registry is likely less than 10 additional deceased organ donors per year, and probably quite a bit smaller than that." Looking at the entire lifetime, rather than one year, I calculated that adding a million people to the donor registry would lead to less than 1,400 extra organ donors.

I pointed to one previous estimate of that value that predicted a figure about 3 times higher, but I hadn't been able to find any other estimates.

During the past month, I looked into extending my estimates to try to calculate the cost-effectiveness of organ donation outreach efforts, and a couple of the papers I looked at calculated estimates for the value I was trying to estimate earlier this month.

Howard and Byrne 2007 try to calculate the value of a marginal registrant, assuming that registrants have differential donation value based on their mortality risk. (The idea driving this is that registered organ donors appear to die substantially less often in ways that allow their organs to be donated than non-registered folks do, suggesting that those people who are easiest to register may not be those who matter the most as donors.) They do a fairly sophisticated calculation that incorporates this issue, registrant age, discounting for future benefits, and family consent policies. They find:
When families are given the right to refuse organ recovery from a registered donor, society should be willing to spend up to $840 for an 18- to 34-year-old registrant [based on a value of $1,087,000 per an organ donor, assuming QALYs are worth $100k]. Because some families will always refuse consent and others will always grant it, the value of registering a donor under a regime of familial consent is always lower than the value under a regime of first-person consent.
Doing the quick division, this means that they estimate the lifetime increase in donations (having already discounted future benefits) for a million marginal 18-34 year old registrants as 840/1.087 = 773 additional donors. That's about half my lifetime estimate from the previous post (1,400), which can mostly be explained by the fact that it's discounted to present value (discounting 30 years at 3% removes 60%). Actually, the authors use an extremely high assessment of the increase in family consent rates associated with registration (45%) based on the Simonoff 2001 paper I discussed in my previous post. They report an alternative scenario as well:
Estimates of the value of registrants under a familial consent regime are probably biased upward. Positive attitudes toward donation are shared by registrants and their families. Thus, the figures from Siminoff and Lawrence almost certainly overstate the impact of registration on consent rates. If registration increases familial consent rates by only 20 percentage points, instead of 45 percentage points, then the value of a registrant is $373. [My estimate in the previous post was based on an increase of 31 percentage points, in between the 20 and 45 estimates.]
This $373 estimate translates to 343 additional discounted lifetime donors per million additional marginal registrants.

Beasley et al. 1999 tried to estimate what the likely returns to an organ donor registry would be, prior to widespread adoption, and turns out to be weirdly prescient, despite a rather crude approach. Reporting that 70% of people claimed to want to donate their organs in a survey, whereas families only consented to donation in 50% of cases, the authors predicted that a registry could lead to to one additional donor for every 5 potential organ donors (i.e. people who die in appropriate ways) registered (70%-50% = 20%). Multiplying out the annual number of potential organ donors, they estimate that:
The number of registrants needed to attain one extra donor above what would have occurred without a registry is given by: 16,700/.2 = 83,300. If we take into account that portion of the donor pool composed of cases that are not identified by hospital staff or not approached for donation by hospital staff (some 27% of the total pool) the number of registrants needed for each additional donor at the margin would be 83,300/.73 or 114,200.
One additional donor per ~100k additional registrants (per year) is just about 10 donors per million additional registrants, which is about what my algebra in the last post suggested as an upper limit for the yield on registrations.

Cost-effectiveness

In the conclusion of my previous post, I tentatively suggested that the organ donation community wasn't spending its money and energy as well as it could be:
My vague impression is that the organ donation community spends a huge amount of its time, money, and effort trying to get more people to sign up as organ donors. My analysis here has been tentative and exploratory, but I think the lack of stronger empirical evidence for an actual impact of those registries is startling, and that it would be worth a fuller exploration by people with more subject-matter expertise than I have. Given that there are a lot of other strategies for improving organ donation, continuing to focus on donor registration outreach seems like it may be leaving a lot on the table.
The key assumption there was that the organ donation community was spending most of its money on trying to get people to register as organ donors. But a quick search reveals shockingly little support for that hypothesis. The total spending by Donate Life America, the big national organ donation promotion organization, was only $1.3 million in 2011 (PDF). Donate Life California spent ~$500k in 2011 (PDF). By contrast, the New York Organ Donor Network spent ~$30 million (PDF), but they're the organ procurement organization, which means that they do all the work around actually harvesting, transporting, etc. organs, in addition to trying to get people to register as donors.

At a budget $1.3 million/year, if Donate Life America is getting one additional donor a year, they're basically breaking even in terms of social impact.

One other interesting datapoint that I heard from a friend this morning is that some folks in the organ donor community--well, one acquaintance of his--estimates that the cost of registering a donor is typically $1.75. At that price, organ donor registries seem like quite a good buy. An organ donor is worth ~$1 million, and we estimated the upper limit on the yield per million additional registered donors as 10 donors/year (though probably substantially fewer). Still, at that cost, we're talking about a potentially really high return on investment, and all the action in trying to assess that ROI will be in the region of impact that's too small for the statistical techniques I used in the last post to yield anything of interest.

For instance, say we're considering whether to significantly increase funding or all the "Donate Life" organizations, which (by hypothesis) spend ~$2 per marginal registrant (and don't face radically increasing costs as they try to get more registrants). That $2 is (pretty easily) worth it as long as one in every ten million marginal registrants end up donating each year. Since the statistical techniques I described in the last post could really only detect a bump of four donors per million additional registrants (or 40 per 10 million), we're massively under-powered to detect the kind of effect size that would matter for practical considerations.

The fact that it only costs <$2 per registrant and folks aren't up in arms over the lack of funding for organizations working to improve registration actually suggests to me that the marginal impact per registrant is probably at the lower end of this spectrum (i.e. closer to 1 additional organ donor per 10 million registrants per year, for the general reasons laid out in this GiveWell blog post), though I don't have the data to really answer that question.

Wednesday, May 1, 2013

Facebook and organ donation: does getting people to sign up as organ donors actually make a difference?

A year ago today, Facebook launched a PR blitz announcing that they were making it possible to publicize your organ donation status on Facebook. Donate Life America, the national coalition of state organ donation organizations, made it pretty clear that Facebook was launching a concerted PR effort:
In an exclusive interview with ABC News’ Robin Roberts on “Good Morning America” this morning, Facebook founder Mark Zuckerberg announced the new initiative and became one of the first Facebook users to sign up to donate on the social network. Tonight Facebook’s COO and one of America’s most powerful businesswomen Sheryl Sandberg will sit down exclusively with Diane Sawyer. ABC News affiliates, ABC News Radio, Yahoo! and ABCNews.com will also feature coverage of the exciting new initiative. ESPN will be running two powerful organ donation stories throughout the day on SportsCenter that encourage organ and tissue donation.
Aaron Swartz, Kieran Healy and I had a short discussion about the prospects for an effect on Twitter. I was optimistic, but Healy said, "public support for donation hasn't been the bottleneck for a very long time."

The best data I've found on the impact of Facebook's efforts comes from a CBC news article from June 25th:
The Facebook drive had an immediate effect. In the first few days, more than 100,000 people changed their status to indicate they were willing to be donors.

To be official, a willing organ donor needs to sign up with their own government's donor program, so Facebook also provided direct links to local donor registries. Donate Life America (DLA), a non-profit dedicated to raising donor awareness, subsequently reported an average 1,000-per-cent increase in online donor registrations across the U.S. over the six days following the addition of the donor feature.

To put that in concrete terms, during that time period 33,406 people legally registered to be donors; other years the number of signups was much smaller – in 2011 for the same time period, it was 3,288. Since then, the signup numbers have stabilized at around 1,150 per day, which was still more than double the historical daily average of 548.
So the Facebook effort led some people who probably weren't on the list before to sign up as organ donors - if the pace kept up, which seems unlikely, Facebook would have led to around 200,000 additional people joining the list this year. But does getting people who aren't yet donors to sign up make much of a difference?

This may seem like a crazy question, so some context is useful: if you die in a way such that your organs could be donated, even if you're not a registered donor, the "organ procurement organization" (OPO) will still ask your family if they'd like your organs to be donated. The OPOs are good (and getting better) at asking, and most people do support organ donation, so they actually get permission from most families that are asked when their loved one wasn't a registered donor. Conversely, in most cases, even if you're registered as a donor, if your family says they don't want your organs donated, the OPO will follow their wishes (this happens pretty rarely, luckily). So, structurally, it's actually not all that obvious that getting more people to sign up as organ donors will make much of a difference, especially if the people you get to sign up are the ones whose families already support donation (which seems pretty likely).

The ideal way to address this problem would be to run a large randomized control trial: spend a bunch of money on randomly giving specific people messages about registering as donors, hopefully getting a big difference in registration rates between treatment and control groups, and then follow them for years to see if the treatment group actually ends up donating at higher rates. This would be expensive, time consuming, and difficult, and to my knowledge it's never been tried.

There are two easier strategies we can pursue to try to identify the impact of marginal donor registry sign-ups, though they won't have the same rigor as the RCT:

  1. compare the actual donation rates of people who are eligible to donate upon death who are and aren't registered donors
  2. comparing states based on the proportion of registered people and the proportion of eligible donors who actually donate. The data and code for my analysis are on github here and figshare here. Feel free to email me if you need any help interpreting; I didn't do much to document well.

Neither of these strategies is as good as an RCT, and in particular both will be unable to distinguish whether registration efforts are just leading more people who would donate anyway to sign up on the list, but they still provide useful information.

Saturday, March 23, 2013

The truly rich give more as a portion of income

Breaking radio silence to report that I think that this Ken Stern column in the Atlantic that has been making the rounds on Twitter and Facebook is wrong.*

He makes a few arguments, but the headline and tagline sum it up pretty well: "Why the Rich Don't Give to Charity: The wealthiest Americans donate 1.3 percent of their income; the poorest, 3.2 percent. What's up with that?"

A few things I find really problematic about this:
  • He goes on to say, not that the "wealthiest Americans" donate 1.3 percent of their income, but that "those with earnings in the top 20 percent" do so, while it's the bottom quintile of income, not "the poorest" donating 3.2 percent. Given that the piece opens with a bunch of stories about giant gifts by billionaires, you'd think the article was actually about philanthropy by the super wealthy; it is not.
  • He never actually cites his source for this claim, and I spent more than an hour looking and couldn't find any evidence for it. His book (fn 13, pg 236) points to this McClatchy article making a similar argument for giving in 2007, based on data from the BLS Consumer Expenditure Survey, but I couldn't find data from them for charitable contributions in 2011, which is when Stern says his numbers come from. I think there's a decent chance that he's not adjusting for the fact that the poor may give proportionally larger gifts at lower rates (leading to lower overall average contributions; see pages 10-12 of pdf here).
  • Income in general might not be the right way to think about charitable giving; it might make a lot more sense to talk in terms of wealth. Elderly people with low incomes might be giving large amounts out of their wealth, juking the stats. (That said, if we did use wealth as the denominator, a lot of poor people would be giving undefined portions of their wealth, so it's complicated.)
I complained about this and Rob Reich pointed out that Stern is right that the super rich aren't necessarily as generous they could or should be, and that much of the philanthropy they conduct is likely spent on frivolous projects. I don't object to that, and I agree with this Tom Paulson post about the Giving Pledge:
The Giving Pledge initiative was launched two years ago by Bill Gates and Warren Buffett to urge the wealthy of the world to give (or, well, actually just ‘pledge’ to give) at least half their wealth away. Today, 11 more of the super-rich have made the promise. So that means the number of the world’s super-wealthy who have agreed to sign on to this (unenforceable) pledge to give just half of their wealth to a good cause when they die has now reached, after two years, a grand total of 92. There’s something like 1,000 billionaires and tens of thousands (or more) multi-millionaires out there.
The Giving Pledge seems like a great initiative, but it's not all that onerous in its terms, and it's kind of crazy how (s)low take-up has been.

So I think that this is true and totally fair, but it definitely doesn't show that "the rich are less generous than the poor."

In fact, when we look at results that include the truly rich, it's clear that they do give more (source PDF):
That chart doesn't show it as much (and the authors argue that it doesn't exist), but people often talk about a U-shape distribution of giving, with both the poor and the rich giving more as a portion of their income. John List does a nice job summarizing what might be going on (PDF here):
Intriguingly, giving as a percentage of household income is U-shaped. Households with incomes between $20,000 and 40,000 give 5 percent of their income to charity. As incomes grow to about $75,000, gifts fall to 2 percent of income, but then rise slightly to 3 percent. Though I have limited data on the donations of the wealthiest members of the population, the Center on Philanthropy (2007b) has reported that among those with net worth between $1 million to $5 million, the average donation to charity in 2005 was more than 5 percent of average income.
What might be causing this U-pattern of giving? The usual explanation is that poor households tend to give to religious causes. This is indeed part of the story: as shown by the data in Table 2, religious giving represents a substantial fraction of giving for low-income households but a lesser fraction for wealthy households. Another proposed explanation in the literature is that younger people with low current incomes expect their wages to rise in the future, which makes the current charitable gifts more affordable. But this does not seem to be the case if one considers the data on age of giver in the middle panel of Table 2.
Another explanation for a U-shape in charitable giving is that a large fraction of the high-percentage donors reporting low incomes are wealthy. When one looks more closely at giving by donors in the bottom income class, it is largely driven by the 5 percent of households that contribute one-tenth or more of their after-tax income. Many of these high-commitment households are high-asset, retired members of the population who are in effect making their contributions out of accumulated wealth rather than out of current income (James and Sharpe, 2007). Taken together, these data patterns suggest that although fewer poor households give money to charity compared to other income classes, the ones that do contribute give much more as a percentage of income than any other income class.
Table 2 also reveals that even though high-income givers are giving less of their household income, the total amount is substantial: households with incomes heir household income, the total amount is substantial: households with incomes exceeding $130,000 give more than $4,500 annually to charity. This begs the question: how much do the mega-wealthy give? Havens and Schervish (1999) show that households in the top 4 percent of the income distribution provided over 40 percent of the total charitable contributions in 1995. Furthermore, they report that the households in the highest 1 percent of the income distribution (annual income above $250,000 in 1994) provided 33 percent of the total charitable dollars in 1995. Auten, Clotfelter, and Schmalbeck (2000) note that the wealthiest 1.4 percent of decedents are responsible for 86 percent of charitable giving from bequests. A more recent figure comes from a Bank of America “High Net Worth Philanthropy” study of giving conducted by the Center for Philanthropy at Indiana University in 2005, which found that the wealthiest 2.3 percent of givers gave 56.5 percent of total donations
Sounds right to me. Whether the distribution is U-shaped or just upward sloping, I just don't see the case for saying the rich give less as a portion of income.

One final note: regardless of what the true relationship between income and charitable contributions is, the thing that always surprises me about these stats is how low they are in an absolute sense. The majority of Americans are in the top 10% of income globally--we're all rich--so it's a little crazy that we're complaining about the differences between 1.5% and 3% of private spending going to charity. It's not crazy and something's better than nothing, but I feel like the right response to these numbers is to say "we should all be giving more" rather than "the rich aren't giving enough."


*He's in public a lot right now plugging his new book, With Charity for All, which discusses GiveWell (where I work) in a pretty positive light. I like the book, I just found this column frustrating.