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The Ethics of Self-Citation

image of man in top hat on pedestal with "EGO" sash

In early 2021, the Swiss Academies of Arts and Sciences (SAAS) published an updated set of standards for academic inquiry; among other things, this new “Code of Conduct for Scientific Integrity” aims to encourage high expectations for academic excellence and to “help build a robust culture of scientific integrity that will stand the test of time.” Notably, whereas the Code’s previous version (published in 2008) treated “academic misconduct” simply as a practice based on spreading deceptive misinformation (either intentionally or due to negligence), the new document expands that definition to include a variety of bad habits in academia.

In addition to falsifying or misrepresenting one’s data — including various forms of plagiarism (one of the most familiar academic sins) — the following is a partial list of practices the SAAS will now also consider “academic misconduct”:

  • Failing to adequately consider the expert opinions and theories that make up the current body of knowledge and making incorrect or disparaging statements about divergent opinions and theories;
  • Establishing or supporting journals or platforms lacking proper quality standards;
  • Unjustified and/or selective citation or self-citation;
  • Failing to consider and accept possible harm and risks in connection with research work; and
  • Enabling funders and sponsors to influence the independence of the research methodology or the reporting of research findings.

Going forward, if Swiss academics perform or publish research failing to uphold these standards, they might well find themselves sanctioned or otherwise punished.

To some, these guidelines might seem odd: why, for example, would a researcher attempting to write an academic article not “adequately consider the expert opinions and theories that make up the current body of knowledge” on the relevant topic? Put differently: why would someone seek to contribute to “the current body of knowledge” without knowing that body’s shape?

As Katerina Guba, the director of the Center for Institutional Analysis of Science and Education at the European University at St. Petersburg, explains, “Today, scholars have to publish much more than they did to get an academic position. Intense competition leads to cutting ethical corners apart from the three ‘cardinal sins’ of research conduct — falsification, fabrication and plagiarism.” Given the painful state of the academic job market, researchers can easily find incentives to pad their CVs and puff up their resumes in an attempt to save time and make themselves look better than their peers vying for interviews.

So, let’s talk about self-citation.

In general, self-citation is simply the practice of an academic who cites their own work in later publications they produce. Clearly, this is not necessarily ethically problematic: indeed, in many cases, it might well be required for a researcher to cite themselves in order to be clear about the source of their data, the grounding of their argument, the development of the relevant dialectical exchange, or many other potential reasons — and the SAAS recognizes this. Notice that the new Code warns against “unjustified and/or selective citation or self-citation” — so, when is self-citation unjustified and/or unethical?

Suppose that Moe is applying for a job and lists a series of impressive-sounding awards on his resume; when the hiring manager double-checks Moe’s references, she confirms that Moe did indeed receive the awards of which he boasts. But the manager also learns that one of Moe’s responsibilities at his previous job was selecting the winners of the awards in question — that is to say, Moe gave the awards to himself.

The hiring manager might be suspicious of at least two possibilities regarding Moe’s awards:

  1. It might be the case that Moe didn’t actually deserve the awards and abused his position as “award-giver” to personally profit, or
  2. It might be the case that Moe could have deserved the awards, but ignored other deserving (potentially more-deserving) candidates for the awards that he gave to himself.

Because citation metrics of publications are now a prized commodity among academics, self-citation practices can raise precisely the same worries. Consider the h-index: a score for a researcher’s publication record determined by a function of their total number of publication credits and how often their publications have been cited in other publications. In short, the h-index claims to offer a handily quantified measurement of how “influential” someone has been on their academic field.

But, as C. Thi Nguyen has pointed out, these sorts of quantifications not only reduce complicated social phenomena (like “influence”) to thinned-out oversimplifications, but they can be gamified or otherwise manipulated by clever agents who know how to play the game in just the right way. Herein lies one of the problems of self-citations: an unscrupulous academic can distort their own h-index scores (and other such metrics) to make them look artificially larger (and more impressive) by intentionally “awarding themselves” with citations just like Moe granted himself awards in Situation #1.

But, perhaps even more problematic than this, self-citations limit the scope of a researcher’s attention when they are purporting to contribute to the wider academic conversation. Suppose that I’m writing an article about some topic and, rather than review the latest literature on the subject, I instead just cite my own articles from several years (or several decades) ago: depending on the topic, it could easily be the case that I am missing important arguments, observations, or data that have been made in the interim period. Just like Moe in Situation #2, I would have ignored other worthy candidates for citation to instead give the attention to myself — and, in this case, the quality of my new article would suffer as a result.

For example, consider a forthcoming article in the Monash Bioethics Review titled “Can ‘Eugenics’ Be Defended?” Co-written by a panel of six authors, many of whom are well-known in their various fields, the 8-page article’s reference list includes a total of 34 citations — 14 of these references (41%) were authored by one or more of the article’s six contributors (and 5 of them are from the lead author, making him the most-cited researcher on the reference list). While the argument of this particular publication is indeed controversial, my present concern is restricted to the article’s form, rather than its contentious content: the exhibited preference to self-cite seems to have led the authors to ignore almost any bioethicists or philosophers of disability who disagree with their (again, extremely controversial) thesis (save for one reference to an interlocutor of this new publication and one citation of a magazine article). While this new piece repeatedly cites questions that Peter Singer (one of the six co-authors) asked in the early 2000s, it fails to cite any philosophers who have spent several decades providing answers to those very questions, thereby reducing the possible value of its purported contributions to the academic discourse. Indeed, self-citation is not the only dysgenic element of this particular publication, but it is one trait that attentive authors should wish to cull from the herd of academic bad habits.

Overall, recent years have seen just such an increased interest among academics about the sociological features of their disciplinary metrics, with several studies and reports being issued about the nature and practice of self-citation (notably, male academics — or at least those without “short, disrupted, or diverse careers” — seem to be far more likely to self-cite, as are those under pressure to meet certain quantified productivity expectations). In response, some have proposed additional metrics to specifically track self-citations, alternate metrics intended to be more balanced, and upending the culture of “curated scorekeeping” altogether. The SAAS’s move to specifically highlight self-citation’s potential as professional malpractice is another attempt to limit self-serving habits that can threaten the credibility of academic claims to knowledge writ large.

Ultimately, much like the increased notice that “p-hacking” has recently received in wider popular culture — and indeed, the similar story we can tell about at least some elements of “fake news” development online —  it might be time to have a similarly wide-spread conversation about how people should and should not use citations.

Some Ethical Problems with Footnotes

scan of appendix title page from 1978 report

I start this article with a frank confession: I love footnotes; I do not like endnotes.
Grammatical quarrels over the importance of the Oxford comma, the propriety of the singular “they,” and whether or not sentences can rightly end with a preposition have all, in their own ways and for their own reasons, broken out of the ivory tower. However, the question of whether a piece of writing is better served with footnotes (at the bottom of each page) or endnotes (collected at the end of the document) is a dispute which, for now, remains distinctly scholastic.1 Although, as a matter of personal preference, I am selfishly partial to footnotes, I must admit – and will hereafter argue – that, in some situations, endnotes can be the most ethical option for accomplishing a writer’s goal; in others, eliminating the note entirely is the best option.
As Elisabeth Camp explains in a TED Talk from 2017, just like a variety of rhetorical functions in normal speech, footnotes typically do four things for a text:

  1. they offer a quick method for citing references;
  2. they supplement the footnoted sentence with additional information that, though interesting, might not be directly relevant to the essay as a whole,
  3. they evaluate the point made by the footnoted sentence with quick additional commentary or clarification, and
  4. they extend certain thoughts within the essay’s body in speculative directions without trying to argue firmly for particular conclusions.

For each of these functions (though, arguably less so for the matter of citation), the appositive commentary is most accessible when directly available on the same page as the sentence to which it is attached; requiring a reader to turn multiple pages (rather than simply flicking their eyes to the bottom of the current page) to find the note erects a barrier that, in all likelihood, leads to many endnotes going unread. As such, one might argue that if notes are to be used, then they should be easily usable and, in this regard, footnotes are better than endnotes.
However, this assumes something important about how an audience is accessing a piece of writing: as Nick Byrd has pointed out, readers who rely on text-to-speech software are often presented with an unusual barrier precisely because of footnotes when their computer program fails to distinguish between text in the main body of the essay versus text elsewhere. Imagine trying to read this page from top to bottom with no attention to whether some portions are notes or not:

(From The Genesis of Yogācāra-Vijñānavāda: Responses and Reflections by Lambert Schmithausen; thanks to Bryce Huebner for the example)
Although Microsoft Office has available features for managing the flow of its screen reader program for Word document files, the fact that many (if not most) articles and books are available primarily in .pdf or .epub formats means that, for many, heavily footnoted texts are extremely difficult to read.
Given this, two solutions seem clear:

  1. Improve text-to-speech programs (and the various other technical apparatuses on which they rely, such as optical character recognition algorithms) to accommodate heavily footnoted documents.
  2. Diminish the practice of footnoting, perhaps by switching to the already-standardized option of endnoting.

And, given that (1) is far easier said than done, (2) may be the most ethical option in the short term, given concerns about accessibility.
Technically, though, there is at least one more option immediately implementable:
3. Reduce (or functionally eliminate) current academic notation practices altogether.
While it may be true that authors like Vladimir Nabokov, David Foster Wallace, Susanna Clarke, and Mark Z. Danielewski (among plenty of others) have used footnotes to great storytelling effect in their fiction, the genre of the academic text is something quite different. Far less concerned with “world-building” or “scene-setting,” an academic book or article, in general, presents a sustained argument about, or consideration of, a focused topic – something that, arguably, is not well-served by interruptive notation practices, however clever or interesting they might be. Recalling three of Camp’s four notational uses mentioned above, if an author wishes to provide supplementation, evaluation, or extension of the material discussed in a text, then that may either need to be incorporated into the body of the text proper or reserved for a separate text entirely.
Consider the note attached to the first paragraph of this very article – though the information it contains is interesting (and, arguably, important for the main argument of this essay), it could potentially be either deleted or incorporated into the source paragraph without much difficulty. Although this might reduce the “augmentative beauty” of the wry textual aside, it could (outside of unusual situations such as this one where a footnote functions as a recursive demonstration of its source essay’s thesis) make for more streamlined pieces of writing.
But what of Camp’s first function for footnotes: citation? Certainly, giving credit fairly for ideas found elsewhere is a crucial element of honest academic writing, but footnotes are not required to accomplish this, as anyone familiar with parenthetical citations can attest (nor, indeed, are endnotes necessary either). Consider the caption to the above image of a heavily footnoted academic text (as of page 365, the author is already up to note 1663); anyone interested in the source material (both objectively about the text itself and subjectively regarding how I, personally, learned of it) can discover this information without recourse to a foot- or endnote. And though this is a crude example (buttressed by the facility of hypertext links), it is far from an unusual one.
Moreover, introducing constraints on our citation practices might well serve to limit certain unusual abuses that can occur within the system of academic publishing as it stands. For one, concerns about intellectual grandstanding already abound in academia; packed reference lists are one way that this manifests. As Camp describes in her presentation,

“Citations also accumulate authority; they bring authority to the author. They say ‘Hey! Look at me! I know who to cite! I know the right people to pay attention to; that means I’m an authority – you should listen to what I have to say.’…Once you’ve established that you are in the cognoscenti – that you belong, that you have the authority to speak by doing a lot of citation – that, then, puts you in a position to use that in interesting kinds of ways.”

Rather than using citations simply to give credit where it is due, researchers can sometimes cite sources to gain intellectual “street cred” (“library-aisle cred”?) for themselves – a practice particularly easy in the age of the online database and particularly well-served by footnotes which, even if left unread, will still lend an impressive air to a text whose pages are packed with them. And, given that so-called bibliometric data (which tracks how and how frequently a researcher’s work is cited) is becoming ever-more important for early-career academics, “doing a lot of citation” can also increasingly mean simply citing oneself or one’s peers.
Perhaps the most problematic element of citation abuse, however, stems from the combination of easily-accessed digital databases with lax (or over-taxed) researchers; as Ole Bjørn Rekdal has demonstrated, the spread of “academic urban legends” – such as the false belief that spinach is a good source of iron or that sheep are anatomically incapable of swimming – often come as a result of errors that are spread through the literature, and then through society, without researchers double-checking their sources. Much like a game of telephone, sloppy citation practices allow mistakes to survive within an institutionally-approved environment that is, in theory, designed to squash them. And while sustaining silly stories about farm animals is one thing, when errors are spread unchecked in a way that ultimately influences demonstrably harmful policies – as in the case of a 101-word paragraph cited hundreds of times since its publication in a 1979 issue of the New England Journal of Medicine which (in part) laid the groundwork for today’s opioid abuse crisis – the ethics of citations become sharply important.
All of this is to say: our general love for academic notational practices, and my personal affinity for footnotes, are not neutral positions and deserve to be, themselves, analyzed. In matters both epistemic and ethical, those who care about the accessibility and the accuracy of a text would do well to consider what role that text’s notes are playing – regardless of their location on a given page.
 
1  Although there have been a few articles written in recent years about the value of notes in general, the consistent point of each has been to lament a perceived downturn amongst the general attitude regarding public disinformation (with the thought that notes of some kind could help to combat this). None seem to specifically address the need for a particular location of notes within a text.