Hostname: page-component-89b8bd64d-n8gtw Total loading time: 0 Render date: 2026-05-10T14:19:52.876Z Has data issue: false hasContentIssue false

The influence of identifiability and singularity in moral decision making

Published online by Cambridge University Press:  01 January 2023

Johanna Wiss*
Affiliation:
The National Center for Priority Setting in Health Care, Department of Medical and Health Sciences, Linköping University, SE-581 83 Linköping, Sweden
David Andersson
Affiliation:
Division of Economics, Department for Management and Engineering, Linköping University
Paul Slovic
Affiliation:
Decision Research and University of Oregon.
Daniel Västfjäl
Affiliation:
Decision Research and University of Oregon.
Gustav Tinghög
Affiliation:
Decision Research and University of Oregon.
Rights & Permissions [Opens in a new window]

Abstract

There is an increased willingness to help identified individuals rather than non-identified, and the effect of identifiability is mainly present when a single individual rather than a group is presented. However, identifiability and singularity effects have thus far not been manipulated orthogonally. The present research uses a joint evaluation approach to examine the relative contribution of identifiability and singularity in moral decision-making reflecting conflicting values between deontology and consequentialism. As in trolley dilemmas subjects could either choose to stay with the default option, i.e., giving a potentially life-saving vaccine to a single child, or to actively choose to deny the single child the vaccine in favor of five other children. Identifiability of the single child and the group of children was varied between-subjects in a 2x2 factorial design. In total 1,232 subjects from Sweden and the United States participated in three separate experiments. Across all treatments, in all three experiments, 32.6% of the subjects chose to stay with the deontological default option instead of actively choosing to maximize benefits. Results show that identifiability does not always have a positive effect on decisions in allocation dilemmas. For single targets, identifiability had a negative or no effect in two out of three experiments, while for the group of targets identifiability had a more stable positive effect on subjects’ willingness to allocate vaccines. When the effect of identifiability was negative, process data showed that this effect was mediated by emotional reactance. Hence, the results show that the influence of identifiability is more complex than it has been previously portrayed in the literature on charitable giving.

Information

Type
Research Article
Creative Commons
Creative Common License - CCCreative Common License - BY
The authors license this article under the terms of the Creative Commons Attribution 4.0 License.
Copyright
Copyright © The Authors [2015] This is an Open Access article, distributed under the terms of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 0

Table 1: Descriptive results for Exp. SWE I, Exp. SWE II and Exp. USA.

Figure 1

Figure 1: Proportion (±s.e.) of subjects allocating vaccine to the single child in Exp. SWE I, Exp. SWE II and Exp. USA.

Figure 2

Table 2: Logistic regressions on giving vaccine to the single child,effects presented as Odds Ratios (OR).

Supplementary material: File

Wiss et al. supplementary material

Wiss et al. supplementary material 1
Download Wiss et al. supplementary material(File)
File 112.3 KB
Supplementary material: File

Wiss et al. supplementary material

Wiss et al. supplementary material 2
Download Wiss et al. supplementary material(File)
File 728.9 KB