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

Edmond Awad¹, Sohan Dsouza², Azim Shariff³, Iyad Rahwan^{4

5

6}, Jean-François Bonnefon⁷

Affiliations

¹ Department of Economics, University of Exeter Business School, Exeter EX4 4PU, United Kingdom; e.awad@exeter.ac.uk shariff@psych.ubc.ca rahwan@mpib-berlin.mpg.de jfbonnefon@gmail.com.
² The Media Lab, Massachusetts Institute of Technology, Cambridge, MA 02139.
³ Department of Psychology, University of British Columbia, Vancouver, BC V6T1Z4, Canada; e.awad@exeter.ac.uk shariff@psych.ubc.ca rahwan@mpib-berlin.mpg.de jfbonnefon@gmail.com.
⁴ The Media Lab, Massachusetts Institute of Technology, Cambridge, MA 02139; e.awad@exeter.ac.uk shariff@psych.ubc.ca rahwan@mpib-berlin.mpg.de jfbonnefon@gmail.com.
⁵ Centre for Humans & Machines, Max-Planck Institute for Human Development, Berlin 14195, Germany.
⁶ Institute for Data, Systems, and Society, Massachusetts Institute of Technology, Cambridge, MA 02139.
⁷ Toulouse School of Economics, Toulouse School of Management-Research, Centre National de la Recherche Scientifique, University of Toulouse Capitole, Toulouse 31015, France e.awad@exeter.ac.uk shariff@psych.ubc.ca rahwan@mpib-berlin.mpg.de jfbonnefon@gmail.com.

Comment

Edmond Awad et al. Proc Natl Acad Sci U S A. 2020.

. 2020 Jun 16;117(24):13205-13206.

doi: 10.1073/pnas.2007044117.

Edmond Awad¹, Sohan Dsouza², Azim Shariff³, Iyad Rahwan^{4

5

6}, Jean-François Bonnefon⁷

¹ Department of Economics, University of Exeter Business School, Exeter EX4 4PU, United Kingdom; e.awad@exeter.ac.uk shariff@psych.ubc.ca rahwan@mpib-berlin.mpg.de jfbonnefon@gmail.com.
² The Media Lab, Massachusetts Institute of Technology, Cambridge, MA 02139.
³ Department of Psychology, University of British Columbia, Vancouver, BC V6T1Z4, Canada; e.awad@exeter.ac.uk shariff@psych.ubc.ca rahwan@mpib-berlin.mpg.de jfbonnefon@gmail.com.
⁴ The Media Lab, Massachusetts Institute of Technology, Cambridge, MA 02139; e.awad@exeter.ac.uk shariff@psych.ubc.ca rahwan@mpib-berlin.mpg.de jfbonnefon@gmail.com.
⁵ Centre for Humans & Machines, Max-Planck Institute for Human Development, Berlin 14195, Germany.
⁶ Institute for Data, Systems, and Society, Massachusetts Institute of Technology, Cambridge, MA 02139.
⁷ Toulouse School of Economics, Toulouse School of Management-Research, Centre National de la Recherche Scientifique, University of Toulouse Capitole, Toulouse 31015, France e.awad@exeter.ac.uk shariff@psych.ubc.ca rahwan@mpib-berlin.mpg.de jfbonnefon@gmail.com.

No abstract available

Conflict of interest statement

The authors declare no competing interest.

Universals and variations in moral decisions made in 42 countries by 70,000 participants.
Awad E, Dsouza S, Shariff A, Rahwan I, Bonnefon JF. Awad E, et al. Proc Natl Acad Sci U S A. 2020 Feb 4;117(5):2332-2337. doi: 10.1073/pnas.1911517117. Epub 2020 Jan 21. Proc Natl Acad Sci U S A. 2020. PMID: 31964849 Free PMC article.
Revised analysis shows relational mobility predicts sacrificial behavior in Footbridge but not Switch or Loop trolley problems.
Claessens S, Kyritsis T, Atkinson QD. Claessens S, et al. Proc Natl Acad Sci U S A. 2020 Jun 16;117(24):13203-13204. doi: 10.1073/pnas.2005012117. Proc Natl Acad Sci U S A. 2020. PMID: 32546629 Free PMC article. No abstract available.

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