Michel J. J. Handgraaf

ORCID: 0000-0003-0809-5393
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Research Areas
  • Experimental Behavioral Economics Studies
  • Environmental Education and Sustainability
  • Psychology of Moral and Emotional Judgment
  • Behavioral Health and Interventions
  • Decision-Making and Behavioral Economics
  • Economic and Environmental Valuation
  • Ethics in Business and Education
  • Social and Intergroup Psychology
  • Evolutionary Psychology and Human Behavior
  • Psychological and Temporal Perspectives Research
  • Climate Change Communication and Perception
  • Environmental Sustainability in Business
  • Neuroendocrine regulation and behavior
  • Evolutionary Game Theory and Cooperation
  • Psychological Well-being and Life Satisfaction
  • Team Dynamics and Performance
  • Cultural Differences and Values
  • Climate Change Policy and Economics
  • Culture, Economy, and Development Studies
  • Energy, Environment, and Transportation Policies
  • Opinion Dynamics and Social Influence
  • Agricultural Innovations and Practices
  • Attachment and Relationship Dynamics
  • Consumer Attitudes and Food Labeling
  • Risk Perception and Management

Wageningen University & Research
2008-2023

Columbia University
2008-2022

University of Amsterdam
2005-2011

Google (United States)
2011

Institute of Psychology
2010

Tilburg University
2003-2004

Humans regulate intergroup conflict through parochial altruism; they self-sacrifice to contribute in-group welfare and aggress against competing out-groups. Parochial altruism has distinct survival functions, the brain may have evolved sustain promote cohesion effectiveness ward off threatening Here, we linked oxytocin, a neuropeptide produced in hypothalamus, regulation of conflict. In three experiments using double-blind placebo-controlled designs, male participants self-administered...

10.1126/science.1189047 article EN Science 2010-06-10

Human ethnocentrism—the tendency to view one's group as centrally important and superior other groups—creates intergroup bias that fuels prejudice, xenophobia, violence. Grounded in the idea ethnocentrism also facilitates within-group trust, cooperation, coordination, we conjecture may be modulated by brain oxytocin, a peptide shown promote cooperation among in-group members. In double-blind, placebo-controlled designs, males self-administered oxytocin or placebo privately performed...

10.1073/pnas.1015316108 article EN Proceedings of the National Academy of Sciences 2011-01-10

Abstract Narrow self-interest is often used as a simplifying assumption when studying people making decisions in social contexts. Nonetheless, exhibit wide range of different motivations choosing unilaterally among interdependent outcomes. Measuring the magnitude concern have for others, sometimes called Social Value Orientation (SVO), has been an interest many scientists decades and several measurement methods developed so far. Here we introduce new measure SVO that advantages over existent...

10.1017/s1930297500004204 article EN cc-by-nc-nd Judgment and Decision Making 2011-12-01

Narrow self-interest is often used as a simplifying assumption when studying people making decisions in social contexts. Nonetheless, exhibit wide range of different motivations choosing unilaterally among interdependent outcomes. Measuring the magnitude concern have for others, sometimes called Social Value Orientation (SVO), has been an interest many scientists decades and several measurement methods developed so far. Here we introduce new measure SVO that advantages over existent methods....

10.2139/ssrn.1804189 article EN SSRN Electronic Journal 2011-01-01

Abstract Individual differences in decision making are a topic of longstanding interest, but often yield inconsistent and contradictory results. After providing an overview individual difference measures that have commonly been used judgment decision-making (JDM) research, we suggest our understanding effects JDM may be improved by amending approach to studying them. We propose four recommendations for improving the pursuit research: more systematic approach; theory-driven selection...

10.1017/s1930297500001455 article EN cc-by-nc-nd Judgment and Decision Making 2011-04-01

The authors investigate the effect of power differences and associated expectations in social decision making. Using a modified ultimatum game, show that allocators lower their offers to recipients when difference shifts favor allocator. Remarkably, however, are completely powerless, increase. This is mediated by change framing situation: When opponent without power, feelings responsibility evoked. On recipient side, do not anticipate these higher outcomes resulting from powerlessness. They...

10.1037/0022-3514.95.5.1136 article EN Journal of Personality and Social Psychology 2008-01-01

This research examines whether and why people manoeuvre their unethical behaviour so as to maximize material gains at a minimal psychological cost. Employing an anonymous die‐under‐cup paradigm, we asked report the outcome of private die roll gain money function reports. Supporting self‐concept maintenance theory, results showed that avoid both major lies (i.e. over‐reporting highest possible outcome) minor (yielding little gain), but did over‐report intermediate outcomes when this implied...

10.1111/j.1467-8551.2010.00709.x article EN British Journal of Management 2010-08-17
Christoph Huber Anna Dreber Jürgen Huber Magnus Johannesson Michael Kirchler and 90 more Utz Weitzel Miguel Abellán Xeniya Adayeva Fehime Ceren Ay Kai Barron Zachariah Berry Werner Bönte Katharina Brütt Muhammed Bulutay Pol Campos‐Mercade Eric Cardella Maria Almudena Claassen Gert Cornelissen Ian Dawson Joyce Delnoij Elif E. Demiral Eugen Dimant Johannes T. Doerflinger Malte Dold Cécile Emery Lenka Fiala Susann Fiedler Eleonora Freddi Tilman Fries Agata Gąsiorowska Ulrich Glogowsky Paul M. Gorny Jeremy D. Gretton Antonia Grohmann Sebastian Hafenbrädl Michel J. J. Handgraaf Yaniv Hanoch Einav Hart Max Hennig Stanton Hudja Mandy Hütter Kyle Hyndman Konstantinos Ioannidis Ozan İşler Sabrina Jeworrek Daniel Jolles Marie Juanchich Raghabendra P. KC Menusch Khadjavi Tamar Kugler Shuwen Li Brian J. Lucas Vincent Mak Mario Mechtel Christoph Merkle Ethan A. Meyers Johanna Möllerström Alexander Nesterov Levent Neyse Petra Nieken Anne‐Marie Nussberger Helena Palumbo Kim Peters Angelo Pirrone Xiangdong Qin Rima-Maria Rahal Holger A. Rau Johannes Rincke Piero Ronzani Yefim Roth Ali Seyhun Saral Jan Schmitz Florian Schneider Arthur Schram Simeon Schudy Maurice E. Schweitzer Christiane Schwieren Irene Scopelliti Miroslav Sirota Joep Sonnemans Ivan Soraperra Lisa Spantig Ivo Steimanis Janina Steinmetz Sigrid Suetens Andriana Theodoropoulou Diemo Urbig Tobias Vorlaufer Joschka Waibel Daniel Woods Ofir Yakobi Onurcan Yılmaz Tomasz Zaleśkiewicz Stefan Zeisberger Felix Holzmeister

Does competition affect moral behavior? This fundamental question has been debated among leading scholars for centuries, and more recently, it tested in experimental studies yielding a body of rather inconclusive empirical evidence. A potential source ambivalent results on the same hypothesis is design heterogeneity-variation true effect sizes across various reasonable research protocols. To provide further evidence whether affects behavior to examine generalizability single study...

10.1073/pnas.2215572120 article EN cc-by Proceedings of the National Academy of Sciences 2023-05-30

Intergroup conflict is often driven by an individual's motivation to protect oneself and fellow group members against the threat of out-group aggression, including tendency pre-empt through a competitive approach. Here we link such defense-motivated competition oxytocin, hypothalamic neuropeptide involved in reproduction social bonding. An intergroup game was developed disentangle whether oxytocin motivates approach (i) immediate self-interest, (ii) vulnerable in-group members, or (iii)...

10.1371/journal.pone.0046751 article EN cc-by PLoS ONE 2012-11-07

In intergroup competition and conflict, humans benefit from coalitions with strong partners who help them to protect their in-group prevail over competing out-groups. Here, we link oxytocin, a neuropeptide produced in the hypothalamus, ally selection competition. double-blind placebo-controlled experiment, males self-administered oxytocin or placebo, made decisions about six high-threat low-threat targets as potential allies Males given rather than placebo viewed more useful frequently...

10.1098/rspb.2011.1444 article EN Proceedings of the Royal Society B Biological Sciences 2011-09-14

10.1023/a:1025940829543 article EN Social Justice Research 2003-01-01

10.1016/j.jesp.2011.04.015 article EN Journal of Experimental Social Psychology 2011-05-02

Abstract Eating and exercising behaviour are both characterized by immediate future consequences. Consequently, consideration of these consequences (i.e. time orientation) predicts eating behaviour. We investigate whether construal level acts as an underlying mechanism relations. Students ( N = 101) completed measures CFC‐food CFC‐exercise), level, preferences. For self‐reported behaviour, only direct effects were found. preferences, however, there was evidence indirect effect through level....

10.1111/ijcs.12313 article EN International Journal of Consumer Studies 2016-09-21

Diets in Mexico, like many countries, have changed dramatically recent decades, with increased consumption of processed foods being a major factor. Research suggests that unhealthy diets low-income communities reflect limited access to healthy foods, combined high costs and knowledge. Weak demand signals from these likely disincentivise the food industry delivering healthier, often costlier, options. This paper explores potential market areas. We elicited willingness pay (WTP) for healthier...

10.1016/j.foodqual.2021.104362 article EN cc-by Food Quality and Preference 2021-08-14

Many campaigns targeting pro-environmental behavior combine multiple approaches without properly understanding how these different interact. Here we study the effect of such combinations. We apply construal level theory to classify intervention approaches, which can either be at a high (abstract and distant) or low (concrete proximal). In field experiment recruited 197 students living in one-person apartments an all-inclusive student housing facility. objectively measured their individual...

10.1371/journal.pone.0209469 article EN cc-by PLoS ONE 2019-01-17

Environmental and health issues are two of the most pressing society faces today. People often view both environmental as psychologically distant: they believe that problems will occur in future, to other people, places exact outcomes uncertain. This paper provides an overview studies have investigated how different psychological distance dimensions (viz., temporal, spatial, social hypothetical) influence perceptions, intentions, decision making domains. suggests indeed matters There...

10.19041/apstract/2016/2-3/4 article EN cc-by-nc Applied Studies in Agribusiness and Commerce 2016-08-01

In order to minimize climate change it is important that people take up a sustainable lifestyle. Sustainable lifestyles call for pro-environmental behaviors (PEBs) in several domains, such as in-home energy use, mobility, and consumption of food goods. However, studies show often do not consistently behave pro-environmentally all domains. this study we investigated how combination personal motivation, the difficulty perceived effort PEB, predicts performance PEBs various using survey (n =...

10.3389/fpsyg.2022.977471 article EN cc-by Frontiers in Psychology 2022-10-11
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