(There appears to be a substantial and continuing amount of psychological work on this topic; the papers I list here are just a fairly random subset to get you started.)
The only other very directly related resource I can think of is my own presentation on moral circle expansion, and various other short content by Sentience Institute’s website, e.g. our FAQ, some of the talks or videos. But I think that the academic psychology literature you refer to is very relevant here. Good starting point articles are, the “moral expansiveness” article you link to above and “Toward a psychology of moral expansiveness.”
Of course, depending on definitions, a far wider literature could be relevant, e.g. almost anything related to animal advocacy, robot rights, consideration of future beings, consideration of people on the other side of the planet etc.
There’s some wider content on “moral advocacy” or “values spreading,” of which work on moral circle expansion is a part:
Collection of sources relevant to moral circles, moral boundaries, or their expansion
Works by the EA community or related communities
Moral circles: Degrees, dimensions, visuals—Michael Aird (i.e., me), 2020
Why I prioritize moral circle expansion over artificial intelligence alignment—Jacy Reese, 2018
The Moral Circle is not a Circle—Grue_Slinky, 2019
The Narrowing Circle—Gwern, 2019 (see here for Aaron Gertler’s summary and commentary)
Radical Empathy—Holden Karnofsky, 2017
Various works from the Sentience Institute, including:
“Our Perspective”
a presentation by Jamie Harris
a presentation by Jacy Reese (the table shown at 10:15 is perhaps especially relevant)
another video by Reese
Extinction risk reduction and moral circle expansion: Speculating suspicious convergence—Aird, work in progress
-Less relevant, or with only a small section that’s directly relevant-
Why do effective altruists support the causes we do? - Michelle Hutchinson, 2015
Finding more effective causes—Michelle Hutchinson, 2015
Cosmopolitanism—Topher Hallquist, 2014
Three Heuristics for Finding Cause X—Kerry Vaughan, 2016
The Drowning Child and the Expanding Circle—Peter Singer, 1997
The expected value of extinction risk reduction is positive—Brauner and Grosse-Holz, 2018
Crucial questions for longtermists: Overview—Michael Aird (me), work in progress
Mass media
Should animals, plants, and robots have the same rights as you? - Sigal Samuel (for Vox’s Future Perfect), 2019
Academic works
(There appears to be a substantial and continuing amount of psychological work on this topic; the papers I list here are just a fairly random subset to get you started.)
Toward a Psychology of Moral Expansiveness—Crimston et al., 2018
Moral expansiveness: Examining variability in the extension of the moral world—Crimston et al., 2016 (my unpolished commentary on this is here) (brief summary here)
Centripetal and centrifugal forces in the moral circle: Competing constraints on moral learning - Graham et al., 2017
Expanding the moral circle: Inclusion and exclusion mindsets and the circle of moral regard—Laham, 2009
Ideological differences in the expanse of the moral circle—Waytz et al., 2019
The Expanding Circle—Peter Singer, 1981
-Less relevant, or with only a small section that’s directly relevant-
The Better Angels of Our Nature—Steven Pinker, 2011
The moral standing of animals: Towards a psychology of speciesism—Caviola, Everett, & Faber, 2019
I intend to add to this list over time. If you know of other relevant work, please mention it in a comment.
See also this comment, my collection of sources relevant to the idea of “moral weight” ,and my collection of evidence about views on longtermism, time discounting, population ethics, etc. among non-EAs.
The only other very directly related resource I can think of is my own presentation on moral circle expansion, and various other short content by Sentience Institute’s website, e.g. our FAQ, some of the talks or videos. But I think that the academic psychology literature you refer to is very relevant here. Good starting point articles are, the “moral expansiveness” article you link to above and “Toward a psychology of moral expansiveness.”
Of course, depending on definitions, a far wider literature could be relevant, e.g. almost anything related to animal advocacy, robot rights, consideration of future beings, consideration of people on the other side of the planet etc.
There’s some wider content on “moral advocacy” or “values spreading,” of which work on moral circle expansion is a part:
Arguments for and against moral advocacy—Tobias Baumann, 2017
Values Spreading is Often More Important than Extinction Risk—Brian Tomasik, 2013
Against moral advocacy—Paul Christiano, 2013
Also relevant: “Should Longtermists Mostly Think About Animals?”
Thanks for adding those links, Jamie!
I’ve now added the first few into my lists above.
I continue to appreciate all the collections you’ve been posting! I expect to find reasons to link to many of these in the years to come.
Good to hear!
Yeah, I hope they’ll be mildly useful to random people at random times over a long period :D
Although I also expect that most people they’d be mildly useful for would probably never be aware they exist, so there may be a better way to do this.
Also, if and when EA coordinates on one central wiki, these could hopefully be folded into or drawn on for that, in some way.