Evidence map›Paper›PMID 31417106›Full record

ArticleScientific reports2019

Increasing altruistic and cooperative behaviour with simple moral nudges.

Valerio Capraro, Glorianna Jagfeld, Rana Klein, Mathijs Mul, Iris van de Pol

Abstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

41 citing papers in PubMed.

  1. Article
  2. Article
  3. Outcome expectations and repeated blood donation behavior: a moderated mediation model in a prospective observational study.Annals of behavioral medicine : a publication of the Society of Behavioral Medicine · 2025
    Observational
  4. Article
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  12. Prosocial behaviour axioms and values: Influence of gender and volunteering.Psicologia, reflexao e critica : revista semestral do Departamento de Psicologia da UFRGS · 2023
    Article
  13. Article
  14. Article
  15. Moral suasion and charitable giving.Scientific reports · 2022
    Article
  16. Article
  17. Article
  18. Review
  19. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Valerio CapraroMiddlesex University of London, London, England. V.Capraro@mdx.ac.uk.
Glorianna JagfeldUniversität Stuttgart, Stuttgart, Germany.
Rana KleinUniversiteit van Amsterdam, Amsterdam, The Netherlands.
Mathijs MulUniversiteit van Amsterdam, Amsterdam, The Netherlands.
Iris van de PolUniversiteit van Amsterdam, Amsterdam, The Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The conflict between pro-self and pro-social behaviour is at the core of many key problems of our time, as, for example, the reduction of air pollution and the redistribution of scarce resources. For the well-being of our societies, it is thus crucial to find mechanisms to promote pro-social choices over egoistic ones. Particularly important, because cheap and easy to implement, are those mechanisms that can change people's behaviour without forbidding any options or significantly changing their economic incentives, the so-called "nudges". Previous research has found that moral nudges (e.g., making norms salient) can promote pro-social behaviour. However, little is known about whether their effect persists over time and spills across context. This question is key in light of research showing that pro-social actions are often followed by selfish actions, thus suggesting that some moral manipulations may backfire. Here we present a class of simple moral nudges that have a great positive impact on pro-sociality. In Studies 1-4 (total N = 1,400), we use economic games to demonstrate that asking subjects to self-report "what they think is the morally right thing to do" does not only increase pro-sociality in the choice immediately after, but also in subsequent choices, and even when the social context changes. In Study 5, we explore whether moral nudges promote charity donations to humanitarian organisations in a large (N = 1,800) crowdfunding campaign. We find that, in this context, moral nudges increase donations by about 44 percent.

Indexed as

AltruismChoice BehaviorCooperative BehaviorMoralsDecision MakingGames, ExperimentalHumansSocial BehaviorSocial Environment

Identifiers

PMID31417106
PMCPMC6695418

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.