[Question] Effective giving initiatives should not assume the best animal and human welfare interventions are equally cost-effective?

As far as I know, all effective giving initiatives (EGIs) measure their cost-effectiveness in terms of multipliers representing how much they increase donations to the organisations and funds they deem cost-effective as a fraction of the EGI’s spending. The cost-effectiveness of EGIs would be proportional to those multipliers if all the organisations and funds they deem cost-effective were equally cost-effective, but I think this is far from true. I very much agree with what Giving What We Can (GWWC), arguably the most notable EGI, says in the section “What do we mean by “effective”?” of their recommendations page.

Not all charities are equal. Your choice of where to donate can lead to significant differences in impact.

Our research team estimates that you can often do 100x more good with your dollar by donating to the best charities, and sometimes this multiplier is even greater.

If this comes as a surprise, you’re not alone. Many donors vastly underestimate the difference between “good” and “great” charities, which explains why many of the best charities to donate to remain underfunded.

However, I believe the above holds not only in the broad charitable world, but also across EGIs’ recommendations if these cover animal and human welfare. I consider increasing donations to the best animal welfare interventions is way more valuable than to the best in human welfare (including not only global health and development, but also global catastrophic risk). I estimate:

  • Broiler welfare and cage-free campaigns are 168 and 462 times as cost-effective as GiveWell’s (GW’s) top charities, which are thought to be among the best human welfare interventions.

  • The Shrimp Welfare Project (SWP) has been 64.3 k times as cost-effective as GW’s top charities.

  • Paying farmers to use more humane pesticides would be 23.7 k times as cost-effective as GiveWell’s top charities, and guess that research on and advocacy for more humane pesticides would be way more cost-effective than paying farmers to use them more. The Wild Animal Initiative (WAI) does research on pesticides.

EGIs measure their impact in increased donations. For example, all the 5 EGIs incubated by Ambitious Impact (AIM) in 2024 set their targets this way. As a result, they risk focusing too much on what is popular, at least between cause areas. If the best animal welfare interventions are over 100 times as cost-effective as the best in human welfare, moving 1 $ to the former is more impactful than moving 100 $ to the latter, and therefore an EGI only has to increase donations to the former 1 % (= 1100) as much as to the latter for animal welfare to be responsible for most of their impact.

It does not necessarily follow that EGIs should only recommend animal welfare interventions. There may be synergies in some cases. Broader recommendations will attract more donors, and some initially only interested in human welfare may end up donating to animal welfare. On the other hand, I think broader recommendations will disperse donors’ attention across many areas which are intuitively more appealing. All in all, I believe animal welfare should still be more prominently promoted by EGIs with recommendations in many areas.

In any case, it still makes sense to maximise impact instead of increased donations, even if the optimal offer covers lots of areas like that of Charity Navigator. So I encourage EGIs to be deliberate about how much they value increasing donations to their different recommendations, particularly across areas. I believe GWWC could lead by advocating for this in their impact evaluation toolkit[1]. In addition, I suggest EGIs not only track their multipliers, but also assess their cost-effectiveness in terms of DALYs averted per $, or another metric which facilitates comparisons with non-fundraising interventions.

I recommend people interested in donating to EGIs support FarmKind, which aims to increase donations to the best animal welfare interventions. I guess Animal Charity Evaluators (ACE) also increases donations to animal welfare by more than 1 $ per $ donated to them. However, I think their continuity is more secure, and that supporting FarmKind has a very high value of information.

I worry EGIs’ cause prioritisation is ultimately restricted by Dustin Moskovitz and Cari Tuna. These are the major funders of Open Philanthropy (OP), which in turn is the major funder of EGIs, and therefore sets their incentives. I encourage people at OP to be deliberate about differences in cost-effectiveness between cause areas instead of incentivising EGIs to simply increase donations to top interventions regardless of their areas.

Thanks to Lucas Moore for feedback on the draft. The views are my own.

  1. ^

    Feel free to ask GWWC’s research team for the toolkit.

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