Category: Medicine

Cost-benefit analysis of marijuana legalization

We analyze the effects of legalizing recreational marijuana on state economic and social outcomes (2000–20) using difference-in-differences estimation robust to staggered timing and heterogeneity of treatment. We find moderate economic gains and accompanied by some social costs. Post-legalization, average state income grew by 3 percent, house prices by 6 percent, and population by 2 percent. However, substance use disorders, chronic homelessness, and arrests increased by 17, 35, and 13 percent, respectively. Although some of our estimates are noisy, our findings suggest that the economic benefits of legalization are broadly distributed, while the social costs may be more concentrated among individuals who use marijuana heavily. States that legalized early experienced similar social costs but larger economic gains, implying a potential first-mover advantage.

That is from a new paper by Jason Brown, Elior Cohen, and R. Alison Felix, via the excellent Kevin Lewis.

The “Deaths of Despair” narrative is somewhat wrong

Matt Yglesias does an excellent job laying out the case against the “deaths of despair” narrative and putting it bluntly. 

Over the past few years, Anne Case and Angus Deaton have unleashed upon the world a powerful meme that seems to link together America’s troublingly bad life expectancy outcomes with a number of salient social and political trends like the unexpected rise of Donald Trump.

Their “deaths of despair” narrative linking declining life expectancy to populist-right politics and to profound social and economic decay has proven to be extremely powerful. But their analysis suffers from fundamental statistical flaws that critics have been pointing out for years and that Case and Deaton just keep blustering through as if the objections don’t matter. Beyond that, they are operating within the confines of a construct — “despair” — that has little evidentiary basis.

Novosad, Rafkin, and Asher have provided a compelling analysis of a very concentrated problem of worsening health outcomes for the worst-off Americans. Case and Deaton, by contrast, have delivered a very misleading portrait of worsening health outcomes for the majority of Americans that (because they mistakenly think it’s a majority) they attribute to broad economic forces that exist internationally but which for some reason only cause “despair” in the United States.

…The point is that we face a set of discrete public health challenges that we need to think about both as policy matters and in terms of politics and public opinion. But there is no “despair” construct driving any of this, and the linkage to big picture political trends is simply that Republicans are more hostile to regulation. Case and Deaton, meanwhile, have sent us on the equivalent of a years-long wild goose chase away from well-known ideas like “smoking is unhealthy” or “it would be good to find a way to get fewer people to use heroin.”

I tend to agree with Matt but I would offer a few cautions. Case and Deaton have been too broad in identifying the at-risk population. Identifying more carefully the at-risk group(s) is important so that we can target different problems with different solutions. Indeed, part of what makes the very important opioid crisis so bedeviling is precisely that it is not limited to “despairing” populations but cuts across many groups.

I wouldn’t, however, throw out despair as an organizing principle. The evidence on “despair” goes beyond death to include a host of co-morbidities such as mental stress, marriage rates, labor force participation rates and other measures of well being. Regardless of the precise population to which these problems attach they are co-morbidities and I suspect not by accident. Education is a proxy for the underlying problem but likely not causal. Matt’s cheeky suggestion to promote ideas like “smoking is unhealthy” illustrates part of the issue. Education and information will not solve that problem. Smokers know that smoking is unhealthy but they do it anyway–perhaps because it’s one of the few easily available pleasures if you are unmarried, out of work and stressed.

Nevertheless, do read the whole thing

On U.S. life expectancy disparities

From the excellent Dylan Matthews:

Case and Deaton are highlighting a real problem, confirmed by other researchers: Americans with different levels of education die at different rates, and the least-educated Americans have seen their death rates surge in a way that more-educated Americans have not.

But the relevant divide does not seem to be between people who earned a bachelor’s degree — who remain a minority among American adults — and people who didn’t. Other research suggests that the problem is concentrated in specific areas of the US, and between the very least-educated Americans (particularly high school dropouts) and the rest of the country, rather than between college grads and non-grads.

Moreover, the cause of the divergence between high school dropouts and the rest of the country does not seem to be caused by “deaths of despair.” There is no doubt that the opioid epidemic in particular has wrought spectacular damage in the US. But some researchers are finding that stagnating progress against cardiovascular disease is an even bigger contributor to US life expectancy stalling out, and to mortality divides between the most- and least-educated Americans.

A lot of what you read about “deaths of despair” is in fact wrong or misguided.

Speeding Up Pharmaceutical Approvals by Recognizing Other Stringent Regulators

New Zealand’s ACT party has proposed that New Zealand speed up pharmaceutical approvals by recognizing the decisions of other stringent regulators, an idea I have long promoted .

The average time for Medsafe to consent an application for a high risk medicine is 630 days. For intermediate risk, it is 661 days and for lower risk it is 830 days8. The average time taken just for processing some lower risk categories is 176-210 days. This is an unacceptable length of time, given there other regulatory bodies replicating that exact same work overseas.

ACT says if a drug or medical device has been approved by any two reputable foreign regulatory bodies (such as Australia, United States, United Kingdom), it should be automatically approved in NZ as well within one week unless Medsafe can show extraordinary reason why it shouldn’t be.

This simple change would significantly improve access to medicines that have already been subject to rigorous testing and analysis through other regulatory regimes.

The ACT party is small but it has some seats and surprisingly the much larger National party is proposing a similar rule:

New Zealand’s slow approval process for medicines means Kiwis wait much longer than people in other countries to access potentially life-saving treatments. While it is essential that medicines and other treatments are subject to stringent scrutiny to ensure they are safe, there is no reason why New Zealanders should have to wait for our domestic medicines regulatory body, Medsafe, to conduct its own cumbersome process from scratch, when countries with health systems we trust have already gone through this exercise.
National will:

…• Require Medsafe to implement even faster approvals processes for any medicines for use in New Zealand that have already been approved by at least two regulatory bodies that we currently recognise, including Australia, the EU, Singapore, the UK, Switzerland and the US.

New Zealand, by the way, already has a reciprocity agreement with the United States for food and it’s mutual–the FDA also recognizes New Zealand as a stringent food regulator–so the idea is not unprecedented.

Moreover, all of this comes on the tail of the UK actually adopting the idea via the “reliance procedure” which recognizes the EU as a stringent regulator and guarantees approval in the UK within 67 days for ay drug approved in the EU.

In the United States, even AOC has flirted with the idea, at least for sunscreens!

Thus, the reciprocity or recognition idea is starting to be adopted.

Hat tip: Eric Crampton who has some further comments.

PEPFAR has been a great achievement

PEPFAR is the President’s Emergency Plan for AIDS Relief, started by George W. Bush in 2003. Overseen by the State Department, the program provides treatment for HIV-AIDS and derivative maladies (such as tuberculosis) through training, medical infrastructure, support for orphans and vulnerable children, and, most important, antiretroviral drugs.

By some estimates, the program has saved 25 million lives over the last two decades, spending about $90 billion for treatments that many Africans otherwise could not have afforded or gotten access to. Not only has PEPFAR saved African lives (in a very cost-effective way, I might add), it’s also improved the quality of life for many Africans and helped the economies of many African nations. The burnishing of America’s reputation is a bonus.

And this:

What does it mean that two of the most successful policies of the last 20 years have originated with Republican administrations? Or that two of the people most associated with these initiatives — Condoleezza Rice (PEPFAR) and Jared Kushner (OWS) — have never received proper recognition for their efforts? They should, in spite of whatever other objections one might have to their other decisions.

Here is the rest of my Bloomberg column.

The need for hospital price transparency

Greater price transparency doesn’t have to cost much money upfront, as most of what is required is attention. A critical majority of Americans — including doctors, patients, politicians, media and hospital board members — needs to insist on this outcome.

And I do mean insist. Just as, at some point, a critical mass of Americans demanded that the US end the Vietnam War. Otherwise, change is very unlikely to happen.

Some parts of the Affordable Care Act provided for transparent hospital pricing of individual services, and further regulations took effect in 2021. These were steps forward, yet the law has not turned the tide. It does not price packages of services, and it does not make it easy to compare one provider to another.

Recent research shows it is hard to even get a single consistent answer from a single provider. For instance, prices posted online and prices quoted over the telephone do not correlate very closely. For 41% of hospitals, the price difference was 50% or more. Clearly, suppliers aren’t really trying.

And:

What if there were regular news coverage of the comparative transparency and standardization of hospital prices? Or more explicit and accessible quality ratings? Or a prominent non-profit, run by medical professionals, devoted solely to making price and quality more transparent? Employers also could evaluate health insurance companies based on their performance by these criteria, much as they currently use ESG analysis. There could be an index of progress, like those national debt clocks one sometimes sees.

Is it absurd to hope that this topic might regularly trend on social media? What if there were public marches in front of hospitals (they can chant, “How much cash for a heart bypass”)? Who will be the Greta Thunberg of price transparency?

That is all from my latest Bloomberg column.

What should I ask Patrick McKenzie?

I will be doing a Conversation with him.  Patrick is a phenomenon of the modern age.  He writes the excellent Bits About Money, which focuses on money, banking, payments, and more.

His blog is Kalzumeus.  He has lived most of his adult life in Japan, and has many excellent posts about Japan.  Here are his greatest hits on the blog.  He has run national shadow vaccine location information infrastructure.   On Twitter he is @patio11.

So what should I ask him?

Pharmaceutical Externalities

In my view, pharmaceuticals are undervalued and underinvested in because, despite high prices, pharmaceutical innovations earn only a fraction of the value that they create (Nordhaus finds that in general that innovations reap only a small share of the gains that they create). In 2014, for example, we got Harvoni a new treatment that offered a complete cure for hepatitis C (HCV) infection. In 2014, Harvoni cost over $1000 a pill and between $60,000 and $100,000 for a full treatment. In 2015 Medicaid spent more on Harvoni than on any other drug and there were calls for regulation and price controls. Studies showed, however, that even at that high price, Harvoni was value/cost-effective. Today, with more competition, there are equivalent versions of Harvoni available from Amazon for $12,869 (and 64 cents) which is still expensive but cheap for a cure for an often debilitating and sometimes life-threatening disease (and the price is less for a private insurance buyer or Medicare/Medicaid). In 2030, Harvoni will go generic and prices will fall much more.

Writing at their new substack, Random Acts of Medicine (based on their book of the same name which I reviewed at the WSJ), Chris Worsham and Bapu Jena point us to another side-benefit of Harvoni and similar hep-C drugs. By curing hep-C these drugs results in fewer liver transplants but that means more livers are available for transplant to other people on the waiting list.

One simple statistic suggests that indeed, treatment of HCV is freeing up donor livers for patients with other diseases: in 2022, patients with chronic HCV infection represented only 11% of liver transplants (1,029 of 9,528)—down from the 38% in 2013 when the new HCV drugs were approved.

Beyond this simple figure, a new working paper by economists Kevin Callison, Michael Darden, and Keith Teltser has taken a new, rigorous look at data from 2014 to 2019 to understand how these new drugs for HCV have impacted liver transplants after their first 5 years of broad use. There were a number of encouraging findings:

  • Waiting lists for liver transplants were being occupied by fewer HCV-positive patients and more HCV-negative patients; this shift can be explained by an estimated 45% reduction in the addition of new HCV-positive patients to waiting lists
  • Patients on the waiting list were healthier, likely because waiting times for livers have decreased with less demand from HCV-positive patients
  • Compared to what would have been expected without the introduction of new HCV treatments, the researchers estimated a 39% decrease in transplants to HCV-positive patients coupled with a 36% increase in transplants to HCV-negative patients.
  • Over the five year period, researchers estimated 5,682 livers were transplanted to HCV-negative patients as a result of the new HCV drugs, corresponding to an economic value of $7.5 billion.

These kinds of external benefits from pharmaceuticals are often undercounted and they are one reason why I think the pharmaceutical price controls in the Inflation Reduction Act are a very bad idea.

EU May Ban Payments for Milk, Sperm and Blood

BrusselsSignal: The European Parliament has approved a draft regulation banning payments for breast milk, sperm, blood and other “substances of human origin” (SoHO).

Billed as an attempt to increase safety across the bloc, the ban allegedly aims to ensure that those who are financially disadvantaged within the bloc are not subject to undue pressure to donate their cells and bodily fluids.

Hmmm. Why not ban the sale of labor to protect financially disadvantaged labor donors from undue pressure? Indeed, why not require that dangerous jobs like mining pay low wages so we can be sure that no one is induced to do these jobs by financial pressure?

More prosaically, the European Union falls short of producing all the blood plasma it needs to meet its demand for life-saving medicine. Consequently, the European Union depends on imports—primarily from compensated donors in the United States—to address its plasma deficit. Should the proposed EU legislation be enacted, the deficit is likely to get worse because Germany, Austria, Hungary, and the Czech Republic, currently permit financial compensation. Indeed the U.S. and these EU countries together account for 90% of the global plasma supply. A ban on paid donations within the EU will thus decrease the quantity of plasma supplied from Germany, Austria, Hungary, and the Czech Republic and force the EU to rely even more on imports from the US.

The US is also the world’s biggest exporter of human sperm because US sperm donors can be compensated and remain anonymous (depending on the state). US donors are also carefully screened for quality, in part due to US regulations and in part due to market demand for information about the donors. Denmark is also a major exporter of sperm, in part because it, too, allows financial incentives to donors. Reduced donations from Denmark will make the European Union increasingly dependent on U.S. sperm supplies. Indeed, after Canada banned paid sperm donors in 2004, the supply of Canadian donors plummeted to just 35 (!) and US sperm exports to Canada increased. Unintended consequences, eh?

Creating EU wide standards for testing of blood, sperm and breast milk to allow greater flows across borders is a good idea. Shortages of baby formula in the US, for example, led to a valuable increase in breast milk donations and sales but it would probably be better if more breast milk donations went through a qualified milk bank rather than through Facebook (and the same is also true for sperm banks and sperm donations). But there is no call for banning paid donation.

Paying donors of blood, sperm and breast milk is an ethical way to increase the quantity supplied and it can be done while ensuring that the donations are high-quality and safe.

Claims about food allergies

I find it is very difficult to trust written material on this topic, nonetheless here is a hypothesis I had not heard before:

So why have our immune systems suddenly gone haywire? One theory notes that we (mostly) eradicated hookworms by the 1980s in the United States. And roundworms. And tapeworms. All the classic parasites are mostly kaput. Without those actual threats, our immune system downshifts to tackle the biggest possible threat on the horizon. Which, these days, might be cashew butter or Camembert.

“It’s looking for stuff to do and it’s staying busy,” Warren said. “But it’s busy doing stupid stuff like reacting to walnuts and birch pollen.”

Some support for this theory comes from anecdotes offered by experts who infected themselves with hookworms to distract their overactive immune systems. While this method achieved some success in curbing stubborn allergies and other conditions, it seems unlikely we’ll see a massive experiment anytime soon that randomly infects healthy Americans with hookworms. Still, this so-called hygiene hypothesis helps explain why allergies may be on the march: Back when they were more widespread, hookworms and their friends may actually have reined in our immune systems’ most aggressive tendencies.

Here is more from Andrew Van Dam.

They Got the Lead Out of Turmeric!

Last year in Get the Lead Out of Turmeric! I reported that adulteration of turmeric was a major source of lead exposure among residents of rural Bangladesh. Well there is good news: the lead is gone! Wudan Yan at UnDark reports the remarkable story of academic research quickly being translated into political action that improves lives.

The story begins (more or less) with PhD student Jenna Forsyth:

Jenna Forsyth knew nothing about the practice of adding lead chromate to turmeric in 2014, when she started her Ph.D. in environment and resources at Stanford University. Excited to continue her masters research on water and sanitation, she sought out working with Stephen Luby, a world expert on the subject. When she arrived, Luby instead pointed Forsyth to a conundrum he was encountering in his work in Bangladesh: In a rural part of the country, pregnant women and children had high levels of lead in their blood. There were none of the usual suspects of lead exposure. There were no nearby battery recycling plants and families didn’t paint their homes. How could this be?

After eliminating dozens of explanations, Forsyth eventually hit on turmeric contamination. But Forsyth and the team didn’t just analyze turmeric in the lab, they hit the ground in Bangladesh:

They visited mills, and sometimes found sacks of the pigment on-site. They sampled dust from the polishing machine and from the floors of the mill. If there was about one part of lead to chromium, it was a dead giveaway that the adulterant was being used. From interviews, they also understood the motive: Brighter roots led to more profit, and adulterating with a consistently bright paint agent could disguise poorer-quality roots. The findings from this study were published in 2019.

Then they took their results to the Bangladesh Food Safety Authority:

The team held a meeting with the Bangladesh Food Safety Authority. The agency’s chairman at the time, Syeda Sarwar Jahan, was immediately concerned. She decided to spearhead a massive public information campaign.

…Local and international news outlets disseminated the findings from Forsyth’s new studies to create public awareness. The researchers met with businesses to make them aware of the risks of lead in turmeric. BFSA posted notices in the nation’s largest wholesale spice market, Shyambazar. The flyers warned people of the dangers of lead and that anyone caught selling turmeric adulterated with lead would be subject to legal action.

Authorities also raided Shyambazar using a machine called an X-ray fluorescence analyzer which can quickly detect lead in spices. Nearly 2,000 pounds of turmeric was seized in the raid and two wholesalers were fined 800,000 taka, more than $9,000 USD.

…In late 2019, as part of the intervention against lead chromate use in turmeric, the Bangladesh Food Safety Authority printed and distributed an estimated 50,000 copies of green flyers, that they shared with traders and plastered around the market. Be skeptical of fingers that appear too bright and yellow, it advised, and if the yellow dusting from turmeric doesn’t come off easily, it’s likely you’ve been played.

Getting rid of the lead isn’t just a cosmetic change. Lead can be so bad, especially for children, that removing it from spices improves lives at very low cost. Kate Porterfield writing at the EA Forum reports:

Despite being a preliminary assessment, this cost-effectiveness analysis (CEA) of this  intervention in Bangladesh presents an exceptionally encouraging outlook, with a cost per DALY-equivalent averted estimated at just under US$1. It is crucial not to overlook the profound significance of this outcome: US$1 represents a small investment for the equivalent of an additional year of life in optimal health.

Early results from Pure Earth’s Rapid Market Assessment project find that between 6 and 12 countries may have similar problems with contaminated spices.  Large parts of northern India (also highly populated) are similarly affected. Other lead salts are also highly colored, in reds and oranges, and found in other products. Programs to halt intentional contamination of spices and other foodstuffs are enormously impactful, and ought to be a first response in the fight against lead poisoning globally.

Finally, other significant sources of lead exposure (including leaded pottery and aluminum cookware, paint, medicines etc) require a similar regulatory response, and are likely to show cost benefit ratios that are also very strong.

Bangladesh has done it. It is time for Northern India to also eliminate lead from spices.

Big congratulations to Forsyth and the other Stanford researchers who documented the problem and who cared enough to follow up with a plan to work with charities and governments in Bangladesh to solve the problem. Big congratulations also to Givewell who supported the project.

The impacts of Covid-19 absences on workers

In the Journal of Public Economics, by Gopi Shah Goda and Evan J. Soltas:

We show that Covid-19 illnesses and related work absences persistently reduce labor supply. Using an event study, we estimate that workers with week-long Covid-19 absences are 7 percentage points less likely to be in the labor force one year later compared to otherwise-similar workers who do not miss a week of work for health reasons. Our estimates suggest Covid-19 absences have reduced the U.S. labor force by approximately 500,000 people (0.2 percent of adults) and imply an average labor supply loss per Covid-19 absence equivalent to $9,000 in forgone earnings, about 90 percent of which reflects losses beyond the initial absence week.

Here is the full article.

Excess All-Cause Mortality in China After Ending the Zero COVID Policy

In this cohort study across all regions in mainland China, an estimated 1.87 million excess deaths occurred among individuals 30 years and older during the first 2 months after the end of China’s zero COVID policy. Excess deaths predominantly occurred among older individuals and were observed across all provinces in mainland China, with the exception of Tibet.

So what is the proper sarcastic headline here?  “I guess that flu was worse than we thought!”?  Or “How is it that China ran out of ivermectin?”  Here is the new JAMA piece, via Rich Dewey.

To be clear, I never thought Zero Covid was a sustainable policy for China.  The real criminal negligence lies with CCP leadership, which turned down opportunities to pursue joint mRNA vaccine production — with the West of course — earlier on.

Compensating Kidney Donors

LA Times: Never in the field of public legislation has so much been lost by so many to one law, as Churchill might’ve put it. The National Organ Transplant Act of 1984 created the framework for the organ transplant system in the United States, and nearly 40 years later, the law is responsible for millions of needless deaths and trillions of wasted dollars. The Transplant Act requires modification, immediately.

We’ve got skin in this game. We both donated our kidneys to strangers. Ned donated to someone who turned out to be a young mother of two children in 2015, which started a chain that helped an additional two recipients. And Matt donated at Walter Reed in 2021, after which his kidney went to a Seattleite, kicking off a chain that helped seven more recipients, the last of whom was back at Walter Reed.

…The National Organ Transplant Act prohibits compensating kidney donors, which is strange in that in American society, it’s common to pay for plasma, bone marrow, hair, sperm, eggs and even surrogate pregnancies. We already pay to create and sustain life.

…Compensation models have been proposed in the past. A National Institutes of Health study listed some of the possibilities, including direct payment, indirect payment, “in kind” payment (free health insurance, for example) or expanded reimbursements. After much review, we come down strongly in support of indirect payment, specifically, a $100,000 refundable federal tax credit. The tax credit would be uniformly applied over a period of 10 years, in the amount of $10,000 a year for those who qualify and then become donors.

This kind of compensation is certainly not a quick-cash scheme that would incentivize an act of desperation. Nor does it commoditize human body parts. Going forward, kidney donation might become partly opportunistic rather than mostly altruistic, as it is now. But would it be exploitative? Not at all.

Long-time readers will know that I have argued for the greater use of incentives in organ donation both for live donors and cadaveric donors. Pecuniary compensation is one possibility but so are no-give, no-take laws that give those who previously signed their organ donor cards priority should they one day need an organ.