Publications

The moral preferences of investors: Experimental evidence

We characterize investors’ moral preferences in a parsimonious experimental setting, where we auction stocks with various ethical …
JF Bonnefon, A Landier, P Sastry, D Thesmar
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Generative AI as a tool for truth

B Bago, JF Bonnefon
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Lie detection algorithms disrupt the social dynamics of accusation behavior

Humans, aware of the social costs associated with false accusations, are generally hesitant to accuse others of lying. Our study shows …
A von Schenk, V Klockmann, JF Bonnefon, I Rahwan, N Köbis
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The impact of generative artificial intelligence on socioeconomic inequalities and policy making

Generative artificial intelligence has the potential to both exacerbate and ameliorate existing socioeconomic inequalities. In this …
V Capraro, A Lentsch A., D Acemoglu, S Akgun, A Akhmedova, E Bilancini, JF Bonnefon, P Brañas-Garza, L Butera, KM Douglas, JAC Everett, G Gigerenzer, C. Greenhow, DA Hashimoto, J Holt-Lunstad, J Jetten, S Johnson, C Longoni, P Lunn, S Natale, I Rahwan, N Selwyn, V Singh, S Suri, J Sutcliffe, J Tomlinson, S van der Linden, PAM Van Lange, F Wall, JJ Van Bavel, R Viale
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The moral psychology of Artificial Intelligence

Moral psychology was shaped around three categories of agents and patients, humans, other animals, and supernatural beings. Rapid …
JF Bonnefon, I Rahwan, A Shariff
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Discovering the unknown unknowns of research cartography with high-throughput natural description

To succeed, we posit that research cartography will require high-throughput natural description to identify unknown unknowns in a …
T Katiyar, JF Bonnefon, SA Mehr, M Singh

Toward human-centered AI management: Methodological challenges and future directions

As algorithms powered by Artificial Intelligence (AI) are increasingly involved in the management of organizations, it becomes …
M Dong, JF Bonnefon, I Rahwan
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Machine culture

The ability of humans to create and disseminate culture is often credited as the single most important factor of our success as a …
L Brinkmann, F Baumann, JF Bonnefon, M Derex, TF Müller, AM Nussberger, A Czaplicka, A Acerbi, TL Griffiths, J Henrich, JZ Leibo, R McElreath, PY Oudeyer, J Stray, I Rahwan
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Machine culture

Trust within human-machine collectives depends on the perceived consensus about cooperative norms

With the progress of artificial intelligence and the emergence of global online communities, humans and machines are increasingly …
K Makovi, A Sargsyan, W Li, JF Bonnefon, T Rahwan
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Humans feel too special for machines to score their morals

Artificial Intelligence (AI) can be harnessed to create sophisticated social and moral scoring systems — enabling people and …
ZA Purcell, JF Bonnefon
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Research on Artificial Intelligence is reshaping our definition of morality

ZA Purcell, JF Bonnefon
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Moral artificial intelligence and machine puritanism

Puritanism may evolve into a technological variant based on norms of delegation of actions and perceptions to Artificial Intelligence. …

Polarized citizen preferences for the ethical allocation of scarce medical resources in twenty countries

We collected citizen preferences regarding triage decisions about scarce medical resources, from 20 countries. We find that citizen …
E Awad, B Bago, JF Bonnefon, NA Christakis, I Rahwan, A Shariff
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Citizens from 13 countries share similar preferences for COVID-19 vaccine allocation priorities

How does the public want a COVID-19 vaccine to be allocated? We conducted a conjoint experiment asking 15,536 adults in 13 countries to …
R Duch, LSJ Roope, M Violato, MF Becerra, T Robinson, JF Bonnefon, J Friedman, P Loewen, P Mamidi, A Melegaro, M Blanco, J Vargas, J Seither, P Candio, AG Cruz, X Hua, A Barnett, PM Clarke
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The car that knew too much: can a machine be moral?

Utility conditionals

Intuition rather than deliberation determines selfish and prosocial choices

B Bago, JF Bonnefon, W De Neys
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Public opinion on global rollout of COVID-19 vaccines

PM Clarke, LSJ Roope, PJ Loewen, JF Bonnefon, A Melegaro, J Friedman, M Violato, A. Barnett, R Duch
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How safe is safe enough? Psychological mechanisms underlying extreme safety demands for self-driving cars

A Shariff, JF Bonnefon, I Rahwan
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Bad machines corrupt good morals

Machines powered by Artificial Intelligence (AI) are now influencing the behavior of humans in ways that are both like and unlike the …
N Köbis, JF Bonnefon, I Rahwan
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Machine thinking, fast and slow

Machines do not think fast and slow in the sense that humans do in dual-process models of cognition. However, the people who create the …
JF Bonnefon, I Rahwan
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Report on the ethics of connected and automated vehicles

With the strategy on Connected and Automated Mobility, the European Commission aims to make Europe a world leader in the development …
Expert Group to advise on specific ethical issues raised by driverless mobility (chair: JF Bonnefon)
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Report on the ethics of connected and automated vehicles

Drivers are blamed more than their automated cars when both make mistakes

When an automated car harms someone, who is blamed by those who hear about it? Here we asked human participants to consider …
E Awad, S Levine, M Kleiman-Weiner, S Dsouza, JB Tenenbaum, A Shariff, JF Bonnefon, I Rahwan
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Universals and variations in moral decisions made in 42 countries by 70,000 participants

When do people find it acceptable to sacrifice one life to save many? Cross-cultural studies suggest a complex pattern of universals …
E Awad, S Dsouza, A Shariff, I Rahwan, JF Bonnefon
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Universals and variations in moral decisions made in 42 countries by 70,000 participants

The moral psychology of AI and the ethical opt-out problem

This chapter discusses the limits of normative ethics in new moral domains linked to the development of Artificial Intelligence. In …
JF Bonnefon, A Shariff, I Rahwan
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Reply to: Life and death decisions of autonomous vehicles

E Awad, S Dsouza, R Kim, J Schulz, J Henrich, A Shariff, JF Bonnefon, I Rahwan

Reply to Claessens et al.: Maybe the footbridge sacrifice is indeed the only one that sends a negative social signal

E Awad, S Dsouza, A Shariff, I Rahwan, JF Bonnefon
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Intelligent machines as social catalysts

Some people excel at facilitating communication between other people. They are social catalysts – they promote engagement within …
I Rahwan, J Crandall, JF Bonnefon
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Intelligent machines as social catalysts

Gendered products act as the extended phenotype of human sexual dimorphism: They increase physical attractiveness and desirability

Gendered marketing is a pervasive trend, despite the public controversies it generates. Most of research so far has focused on the …
S Borau, JF Bonnefon
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Do learners declining to seek help conform to rational principles?

Why do learners fail to seek help, when doing so would be beneficial? Principles of rational decision suggest that seeking help is not …
M Miranda Lery Santos, A Tricot, JF Bonnefon
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Crowdsourcing moral machines

E Awad, S Dsouza, JF Bonnefon, A Shariff, I Rahwan
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Anxiety-induced miscalculations, more than differential inhibition of intuition, explain the gender gap in cognitive reflection

The Cognitive Reflection Test (CRT) is among the most common and well‐known instruments for measuring the propensity to engage …
M Juanchich, M Sirota, JF Bonnefon
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Age-related neural correlates of facial trustworthiness detection during economic interaction

Some economic transactions require people to trust strangers, whose trustworthiness is unknown. In these circumstances, behavioral …
E Salvia, K Mevel, G Borst, N Poirel, G Simon, F Orliac, O Etard, A Hopfensitz, O Houde, JF Bonnefon, W De Neys
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Verbal uncertainty

M Juanchich, M Sirota, JF Bonnefon

The trolley, the bull bar, and why engineers should care about the ethics of autonomous cars

JF Bonnefon, A Shariff, I Rahwan
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The polite wiggle-room effect in charity donation decisions

We extend research on charity donations by exploring an everyday tactic for increasing compliance; asking politely. We consider three …
M Juanchich, M Sirota, JF Bonnefon
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The imaginary intrasexual competition: Advertisements featuring provocative female models trigger women to engage in indirect aggression

Recent research suggests that women react to idealized female models in advertising as they would react to real-life sexual rivals. …
S Borau, JF Bonnefon
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Machine behaviour

Machines powered by artificial intelligence increasingly mediate our social, cultural, economic and political interactions. …
I Rahwan, M Cebrian, N Obradovich, N Bongard, JF Bonnefon, C Breazeal, JW Crandall, NA Christakis, I Couzin, MO Jackson, NR Jennings, E Kamar, I Kloumann, H Larochelle, D Lazer, R McElreath, A Mislove, DC Parkes, A Pentland, ME Roberts, A Shariff, JB Tenenbaum, M Wellman
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Machine behaviour

La voiture qui en savait trop : l'intelligence artificielle a-t-elle une morale ?

Causal understanding is not necessary for the improvement of culturally evolving technology

Bows and arrows, houses and kayaks are just a few examples of the highly optimized tools that humans have produced and used to colonize …
M Derex, JF Bonnefon, R Boyd, A Mesoudi
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Behavioural evidence for a transparency-efficiency tradeoff in human-machine cooperation

Recent advances in artificial intelligence and deep learning have made it possible for bots to pass as humans, as is the case with the …
F Ishowo-Oloke, JF Bonnefon, Z Soroye, J Crandall, I Rahwan, T Rahwan
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The pros and cons of identifying critical thinking with System 2 processing

The dual-process model of cognition but most especially its reflective component, system 2 processing, shows strong conceptual links …
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The moral machine experiment

With the rapid development of artificial intelligence have come concerns about how machines will make moral decisions, and the major …
E Awad, S Dsouza, R Kim, J Schulz, J Henrich, A Shariff, JF Bonnefon, I Rahwan
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The moral machine experiment

Cooperating with machines

Since Alan Turing envisioned artificial intelligence, technical progress has often been measured by the ability to defeat humans in …
JW Crandall, M Oudah, Tennom, F Ishowo-Oloko, S Abdallah, JF Bonnefon, M Cebrian, A Shariff, MA Goodrich, I Rahwan
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1-in-X bias: 1-in-X format causes overestimation of health-related risks

According to the 1-in-X effect, 1-in-X ratios (e.g., 1 in 12) trigger a higher subjective probability than do numerically equivalent …
M Sirota, M Juanchich, JF Bonnefon
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Value similarity and overall performance: Trust in responsible investment

The purpose of this paper is to show how overall performance can help foster trust in financial institutions. While a climate of …
JF Bonnefon, M Heimann, K Lobre-Lebraty
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Trustworthiness perception at zero acquaintance: consensus, accuracy, and prejudice

Research on trustworthiness perception from faces has unfolded in a way that is strikingly reminiscent of Jussim’s narrative in …
JF Bonnefon, A Hopfensitz, W De Neys
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The advertising performance of non-ideal female models as a function of viewers' body mass index: a moderated mediation analysis of two competing affective pathways

Advertisements often display ideal female bodies which create unattainable standards of beauty, generating body anxiety and disorders …
S Borau, JF Bonnefon
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Split-second trustworthiness detection from faces in an economic game

Economic interactions often imply to gauge the trustworthiness of others. Recent studies showed that when making trust decisions in …
W De Neys, A Hopfensitz, JF Bonnefon
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Reasoning unbound: Thinking about morality, delusion, and democracy

Reasoning and moral judgment: A common experimental toolbox

B Tremoliere, W De Neys, JF Bonnefon
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Psychological roadblocks to the adoption of self-driving vehicles

Self-driving cars offer a bright future, but only if the public can overcome the psychological challenges that stand in the way of …
A Shariff, JF Bonnefon, I Rahwan
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Moral inferences

B Tremoliere, JF Bonnefon

Experimental assessment of aggregation principles in argumentation-enabled collective intelligence

On the Web, there is always a need to aggregate opinions from the crowd (as in posts, social networks, forums, etc.). Different …
E Awad, JF Bonnefon, M Caminada, T Malone, I Rahwan
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Experimental approaches to linguistic (im)politeness

TM Holtgraves, JF Bonnefon
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Can we detect cooperators by looking at their face?

Humans are willing to cooperate with each other for mutual benefit???and to accept the risk of exploitation. To avoid collaborating …
JF Bonnefon, A Hopfensitz, W De Neys
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The social dilemma of autonomous vehicles

Autonomous vehicles (AVs) should reduce traffic accidents, but they will sometimes have to choose between two evils, such as running …
JF Bonnefon, A Shariff, I Rahwan
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The social dilemma of autonomous vehicles

Predicting behavior on the basis of arguments from consequences

New paradigm psychology of reasoning: Basic and applied perspectives

S Elqayam, JF Bonnefon, DE Over

Introducing a fund for open-access fees

SA Sloman, A Kim, JF Bonnefon, J Wagemans, MC Frank, JE Arnold, G Murphy, M Tsakiris, J Feldman, SF Lourenco, K Wynn
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Individual differences in reasoning, beyond ability and disposition

JF Bonnefon, E Billaut

Some but not all dispreferred turn markers help to interpret scalar terms in polite contexts

In polite contexts, people find it difficult to perceive whether they can derive scalar inferences from what others say (e.g., does …
JF Bonnefon, E Dahl, TM Holtgraves
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People's views about the acceptability of remuneration policies and executive bonuses

We applied a technique borrowed from the field of bioethics to test whether justice-related factors influence laypersons' decisions …
M Heimann, JF Bonnefon, E Mullet
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Non-reflective thinkers are predisposed to attribute supernatural causation to uncanny experiences

For unknown reasons, individuals who are confident in their intuitions are more likely to hold supernatural beliefs. How does an …
R Bouvet, JF Bonnefon
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Intrasexual competition shapes men's anti-utilitarian moral decisions

Killing someone in order to save several lives seems more morally acceptable to men than to women. We suggest that this greater …
B Tremoliere, G Kaminski, JF Bonnefon
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Face-ism and kernels of truth in facial inferences

JF Bonnefon, A Hopfensitz, W De Neys
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Eye movements reveal how readers infer intentions from the beliefs and desires of others

We examine how the beliefs and desires of a protagonist are used by readers to predict their intentions as a narrative vignette …
M Haigh, JF Bonnefon
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Eye movements disrupt episodic future thinking

Remembering the past and imagining the future both rely on complex mental imagery. We considered the possibility that constructing a …
S De Vito, A Buonocore, JF Bonnefon, S della Sala
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Conditional sentences create a blind spot in theory of mind during narrative comprehension

We identify a blind spot in the early Theory of Mind processing of conditional sentences that describe a protagonist’s potential …
M Haigh, JF Bonnefon
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Adolescents gradually improve at detecting trustworthiness from the facial features of unknown adults

People can (to some extent) detect trustworthiness from the facial features of social partners, and populations which underperform at …
W De Neys, A Hopfensitz, JF Bonnefon
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The rationality of mortals: Thoughts of death disrupt analytic processing

Thinking about death triggers defensive mechanisms that use up executive resources, which are no longer available for demanding mental …
B Tremoliere, JF Bonnefon

The grim reasoner: Analytical reasoning under mortality salience

The human species enjoys uniquely developed capacities for analytical reasoning and rational decision making, but these capacities come …
B Tremoliere, W De Neys, JF Bonnefon
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Politeness and reasoning: Face, connectives, and quantifiers

People believe each other to be selfish hedonic maximizers

Current computational models of theory of mind typically assume that humans believe each other to selfishly maximize utility, for a …
S De Vito, JF Bonnefon
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Legitimacy of executive compensation plans: A preliminary study of French laypersons' acceptability

Drawing on corporate social responsibility (CSR) theory we investigated laypersons acceptability of senior executive compensation …
M Heimann, E Mullet, JF Bonnefon
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Intelligence artificielle et psychologie du raisonnement et de la décision

JF Bonnefon, G Politzer

Eye movements disrupt spatial but not visual mental imagery

It has long been known that eye movements are functionally involved in the generation and maintenance of mental images. Indeed, a …
S De Vito, A Buonocore, JF Bonnefon, S Della Sala
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Efficient kill-save ratios ease up the cognitive demands on counterintuitive moral utilitarianism

The dual-process model of moral judgment postulates that utilitarian responses to moral dilemmas (e.g., accepting to kill one to save …
B Tremoliere, JF Bonnefon
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Analytical reasoning task reveals limits of social learning in networks

Social learning—by observing and copying others—is a highly successful cultural mechanism for adaptation, outperforming individual …
I Rahwan, D Krasnoshtan, A Shariff, JF Bonnefon
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Utility templates for the interpretation of conditional statements

People often use conditional statements to describe configurations of agents, actions and valued consequences. In this paper we propose …
JF Bonnefon, M Haigh, AJ Stewart
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The whys and whens of individual differences in thinking biases

Although human thinking is often biased, some individuals are less susceptible to biases than others. These individual differences have …
W De Neys, JF Bonnefon
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The modular nature of trustworthiness detection

The capacity to trust wisely is a critical facilitator of success and prosperity, and it has been conjectured that people of higher …
JF Bonnefon, A Hopfensitz, W De Neys
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The causal structure of utility conditionals

The psychology of reasoning is increasingly considering agents' values and preferences, achieving greater integration with judgment and …
JF Bonnefon, SA Sloman
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Politeness and honesty contribute additively to the interpretation of scalar expressions

Scalar terms have been the focus of much recent attention. People can interpret such terms narrowly, for example, interpreting A or B …
A Feeney, JF Bonnefon
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People are more likely to be insincere when they are more likely to accidentally tell the truth

Although people lie often, and mostly for self-serving reasons, they do not lie as much as they could. The ‘fudge factor’ …
S Leblois, JF Bonnefon
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New ambitions for a new paradigm: Putting the psychology of reasoning at the service of humanity

To what extent can the psychology of reasoning ‘serve humanity’? Three case studies suggest that the psychology of …
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Low second-to-fourth digit ratio predicts indiscriminate social suspicion, not improved trustworthiness detection

Testosterone administration appears to make individuals less trusting, and this effect has been interpreted as an adaptive adjustment …
W De Neys, A Hopfensitz, JF Bonnefon
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Formal models of reasoning in cognitive psychology

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Decision makers use norms, not cost-benefit analysis, when choosing to conceal or reveal unfair rewards

We introduce the Conceal or Reveal Dilemma, in which individuals receive unfair benefits, and must decide whether to conceal or to …
M Heimann, V Girotto, P Legrenzi, JF Bonnefon
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Can mutualistic morality predict how individuals deal with benefits they did not deserve?

JF Bonnefon, V Girotto, M Heimann, P Legrenzi
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Utility conditionals as consequential arguments: A random sampling experiment

Research on reasoning about consequential arguments has been an active but piecemeal enterprise. Previous research considered in depth …
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The psychology of reasoning about preferences and unconsequential decisions

People can reason about the preferences of other agents, and predict their behavior based on these preferences. Surprisingly, the …
JF Bonnefon, V Girotto, P Legrenzi
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Qualitative and quantitative conditions for the transitivity of perceived causation: Theoretical and experimental results

If A caused B and B caused C, did A cause C? Although laypersons commonly perceive causality as being transitive, some philosophers …
JF Bonnefon, RM Da Silva Neves, D Dubois, H Prade
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Mortality salience and morality: Thinking about death makes people less utilitarian

According to the dual-process model of moral judgment, utilitarian responses to moral conflict draw on limited cognitive resources. …
B Tremoliere, W De Neys, JF Bonnefon
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Le raisonnement

Zhi zai zhong guo ren de jia she si wei zhong de jue se

JF Bonnefon, CP Deng, J Zhang

The risk of polite misunderstandings

We review evidence showing that politeness taxes mental resources and creates confusion about what is truly meant during interactions. …
JF Bonnefon, A Feeney, W De Neys
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The experimental approach to trust in socially responsible funds

M Heimann, S Pouget, E Mullet, JF Bonnefon
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The doctrinal paradox, a new challenge for behavioral psychologists

In various professional and private contexts, it is often necessary to aggregate different opinions about whether a given claim is true …
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The 1-in-X effect on the subjective assessment of medical probabilities

Among numerical formats available to express probability, ratios are extensively used in risk communication, perhaps because of the …
S Pighin, L Savadori, E Barilli, L Cremonesi, M Ferrari, JF Bonnefon
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Processing scalar inferences in face-threatening contexts

Depending on politeness considerations, the quantifier “some” can receive a broad interpretation (some and possibly all) or …
JF Bonnefon, W De Neys, A Feeney
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Pragmatics, mental models, and one paradox of the material conditional

Most instantiations of the inference “y; so if x, y” seem intuitively odd, a phenomenon known as one of the paradoxes of …
JF Bonnefon, G Politzer
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Overcoming number numbness in prenatal risk communication

OBJECTIVE Efficient prenatal risk communication hinges upon parents' grasp of statistical information. When forming their subjective …
S Pighin, JF Bonnefon, L Savadori
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Norms for reasoning about decisions

Le raisonneur et ses modeles: Un changement de paradigme dans la psychologie du raisonnement

Facework and uncertain reasoning in health communication

OBJECTIVES Health care professionals often need to convey good and bad prospects to patients, and these news can be qualified by …
S Pighin, JF Bonnefon
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Two aspects of reasoning competence: A challenge for current accounts and a call for new conceptual tools

G Politzer, JF Bonnefon

Pragmatic conditionals, conditional pragmatics, and the pragmatic component of conditional reasoning

JF Bonnefon, G Politzer

Modern psychometrics for the experimental psychology of reasoning

Reasoning tests, as used in the measure of intelligence, are not reasoning experiments, as used in the psychology of reasoning. Tests …
JF Bonnefon, S. Vautier

Experiments for assessing floating reinstatement in argument-based reasoning

I Rahwan, JF Bonnefon, M Madakkatel, R. N. Awan, S Abdallah

Deduction from if-then personality signatures

Personality signatures are sets of “if then”" rules describing how a given person would feel or act in a specific …
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Computer-mediated trust in self-interested expert recommendations

Important decisions are often based on a distributed process of information processing, from a knowledge base that is itself …
J. Ben-Naim, JF Bonnefon, A. Hertzig, S. Leblois, E. Lorini

Behavioral experiments for assessing the abstract argumentation semantics of reinstatement

Argumentation is a very fertile area of research in Artificial Intelligence, and various semantics have been developed to predict when …
I Rahwan, JF Bonnefon, M. I. Madakkatel, R. N. Awan, S. Abdallah
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Behavioral evidence for framing effects in the resolution of the doctrinal paradox

The aggregation of individual sets of judgments over interconnected propositions can yield inconsistent collective sets of judgments, …
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When some is actually all: Scalar inferences in face-threatening contexts

Accounts of the scalar inference from ‘some X-ed’ to ‘not all X-ed’ are central to the debate between …
JF Bonnefon, A Feeney, G Villejoubert
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Relation of trust and social emotions: A logical approach

Trust and social emotions such as gratitude and anger have natural relations and they both play a key role in research of interaction …
MH Nguyen, D Longin, JF Bonnefon
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Politeness and conditional reasoning: Interpersonal cues to the indirect suppression of deductive inferences

A successful theory of conditional reasoning requires an account of how reasoners recognize the pragmatic function a conditional …
V Demeure, JF Bonnefon, E Raufaste
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Let us not put the probabilistic cart before the uncertainty bull

G Politzer, JF Bonnefon

Active involvement, not illusory control, increases risk taking in a gambling game

The research considers the influence of choice (the possibility for the player to choose a gamble or another) and involvement (the …
F Martinez, JF Bonnefon, J Hoskens
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A theory of utility conditionals: Paralogical reasoning from decision-theoretic leakage

Many ‘if p, then q’ conditionals have decision-theoretic features, such as antecedents or consequents that relate to the …
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Utilitarian relevance and face-management in the interpretation of ambiguous question/request statements

Often, requests are made in an indirect manner and phrased in such a way that they can also be construed as questions. For example, the …
V Demeure, JF Bonnefon, E Raufaste
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Utilitarian relevance and face-management in the interpretation of ambiguous question/request statements

Two routes for bipolar information processing, and a blind spot in between

This position paper addresses the question of why, whilst the human brain is apparently geared to process information of mixed …
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Transitive observation-based causation, saliency, and the Markov condition

If A caused B and B caused C, did A caused C? Although causality is generally regarded as transitive, some philosophers have questioned …
JF Bonnefon, D Dubois, H Prade

The intensity of recent and distant life regrets: An integrative model and a large scale survey

The research considers three predictors of the intensity of life regrets (a) whether the regretted behaviour is an action or a failure …
JF Bonnefon, J Zhang
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Qualitative heuristics for balancing the pros and cons

Balancing the pros and cons of two options is undoubtedly a very appealing decision procedure, but one that has received scarce …
JF Bonnefon, D Dubois, H Fargier, S Leblois
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Predicting causality ascriptions from background knowledge: Model and experimental validation

A model is defined that predicts an agent’s ascriptions of causality (and related notions of facilitation and justification) …
JF Bonnefon, R Da Silva Neves, D Dubois, H Prade
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On the comparison of decisions having positive and negative features

Making a decision is often a matter of listing and comparing positive and negative arguments. In such cases, the evaluation scale for …
D Dubois, H Fargier, JF Bonnefon
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Is the above average effect measurable at all? The validity of the self-reported happiness minus other's perceived happiness construct

Individuals routinely rate themselves higher than their peers on a number of attributes and capabilities, including their satisfaction …
S Vautier, JF Bonnefon
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Is the above average effect measurable at all? The validity of the self-reported happiness minus other's perceived happiness construct

Defective truth tables and falsifying cards: Two measurement models yield no evidence of an underlying fleshing-out propensity

Using a latent variable modelling strategy we study individual differences in patterns of answers to the selection task and to the …
JF Bonnefon, S Vautier
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An overview of bipolar qualitative decision rules

Making a good decision is often a matter of listing and comparing positive and negative arguments, as studies in cognitive psychology …
JF Bonnefon, D Dubois, H Fargier

A mixed Rasch model of dual-process conditional reasoning

A fine-grained dual-process approach to conditional reasoning is advocated. Responses to conditional syllogisms are reached through the …
JF Bonnefon, M Eid, S Vautier
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A comparative study of six formal models of causal ascription

Ascribing causality amounts to determining what elements in a sequence of reported facts can be related in a causal way, on the basis …
S Benferhat, JF Bonnefon, P Chassy, R Da Silva Neves, D Dubois, F Dupin de Saint Cyr, D Kayser, F Nouioua, S Nouioua Boutouhami, H Prade, S Smaoui
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The logical handling of threats, rewards, tips, and warnings

Previous logic-based handling of arguments has mainly focused on explanation or justification in presence of inconsistency. As a …
L Amgoud, JF Bonnefon, H Prade
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Reasons to act and the mental representation of consequentialist aberrations

Modus Tollens, Modus Shmollens: Conversational effects on contrapositive reasoning

The utterance of a negative statement invites the pragmatic inference that some reason exists for the proposition it negates to be …
JF Bonnefon, G Villejoubert
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Modeling individual differences in contrapositive reasoning with continuous latent state and trait variables

Recent developments in the psychology of judgment and reasoning have emphasized the importance of individual differences in responses …
JF Bonnefon, S Vautier, M Eid

How do individuals solve the doctrinal paradox in collective decisions? An empirical investigation

No abstract is available for this Short Report publication
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Two varieties of conditionals and two kinds of defeaters help reveal two fundamental types of reasoning

Two notions from philosophical logic and linguistics are brought together and applied to the psychological study of defeasible …
G Politzer, JF Bonnefon
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Tactful or doubtful? Expectations of politeness explain the severity bias in the interpretation of probability phrases

When a statement about the occurrence of a medical condition is qualified by an expression of probability, such as the word possible, …
JF Bonnefon, G Villejoubert
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Comparing sets of positive and negative arguments: Empirical assessment of seven qualitative rules

Many decisions can be represented as bipolar, qualitative sets of arguments. Arguments can be pros or cons, and ranked according to …
JF Bonnefon, H Fargier
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Background default knowledge and causality ascriptions

A model is defined that predicts an agent’s ascriptions of causality (and related notions of facilitation and justification) …
JF Bonnefon, R Da Silva Neves, D Dubois, H Prade
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Putting ifs to work: Goal-based relevance in conditional directives

Conditional directives are used by speakers to instruct hearers which actions are to be taken should certain events occur. The authors …
DJ Hilton, M Kemmelmeier, JF Bonnefon
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How to do things with logical expressions: Creating collective value through co-ordination

We argue that logical expressions in human language enable speakers to perform particular acts as well as stating propositions which …
DJ Hilton, G Villejoubert, JF Bonnefon
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Getting the point of conditionals: An argumentative approach to the psychological interpretation of conditional premises

Processes that govern the interpretation of conditional statements by lay reasoners are considered a key issue by nearly all reasoning …
JF Bonnefon, DJ Hilton

Communicating likelihood and managing face: Can we say it is probable when we know it to be certain?

Different functions can be performed by probability phrases such as ‘it is probable/possible/likely that x.’ Mainly, …
JF Bonnefon, G Villejoubert
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Between-subject or within-subject measures of regret: dilemma and solution

The ‘action effect’ according to which actions produce more regret than failures to act, has been shown to disappear in …
J Zhang, C Walsh, JF Bonnefon
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An overview of possibilistic handling of default reasoning, with experimental studies

This paper first provides a brief survey of a possibilistic handling of default rules. A set of default rules of the form, …
S Benferhat, JF Bonnefon, R Da Silva Neves
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An argumentation-based approach to multiple criteria decision

The paper presents a first tentative work that investigates the interest and the questions raised by the introduction of argumentation …
L Amgoud, JF Bonnefon, H Prade
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Reinstatement, floating conclusions, and the credulity of mental model reasoning

Johnson-Laird and coworkers' Mental Model theory of propositional reasoning is shown to be somewhere in between what logicians have …
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Consequential conditionals: Invited and suppressed inferences from valued outcomes

Consequential conditionals are defined as ‘if P then Q’ statements, where P is an action, and Q a predicted outcome of this …
JF Bonnefon, DJ Hilton
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Consequential conditionals: Invited and suppressed inferences from valued outcomes

An experimental analysis of possibilistic default reasoning

S Benferhat, JF Bonnefon, R Da Silva Neves

The suppression of Modus Ponens as a case of pragmatic preconditional reasoning

The suppression of the Modus Ponens inference is described as a loss of confidence in the conclusion C of an argument ‘If A1 then …
JF Bonnefon, DJ Hilton
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The suppression of Modus Ponens as a case of pragmatic preconditional reasoning

An empirical test for patterns of nonmonotonic inference

Human inference can be used to test the inference patterns a reliable nonmonotonic consequence should satisfy, because it appears to be …
R Da Silva Neves, JF Bonnefon, E Raufaste
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An empirical test for patterns of nonmonotonic inference