Lying on networks: the role of structure and topology in promoting honesty

Article

Capraro, V., Perc, M. and Vilone, D. 2020. Lying on networks: the role of structure and topology in promoting honesty. Physical Review E. 101 (3). https://doi.org/10.1103/PhysRevE.101.032305
TypeArticle
TitleLying on networks: the role of structure and topology in promoting honesty
AuthorsCapraro, V., Perc, M. and Vilone, D.
Abstract

Lies can have a negating impact on governments, companies, and the society as a whole. Understanding the dynamics of lying is therefore of crucial importance across different fields of research. While lying has been studied before in well-mixed populations, it is a fact that real interactions are rarely well-mixed. Indeed, they are usually structured and thus best described by networks. Here we therefore use the Monte Carlo method to study the evolution of lying in the sender-receiver game in a one-parameter family of networks, systematically covering complete networks, small-world networks, and one-dimensional rings. We show that lies which benefit the sender at a cost to the receiver, the so-called black lies, are less likely to proliferate on networks than they do in well-mixed populations. Honesty is thus more likely to evolve, but only when the benefit for the sender is smaller than the cost for the receiver. Moreover, this effect is particularly strong in small-world networks, but less so in the one-dimensional ring. For lies that favor the receiver at a cost to the sender, the so-called altruistic white lies, we show that honesty is also more likely to evolve than it is in well-mixed populations. But contrary to black lies, this effect is more expressed in the one-dimensional ring, whereas in small-world networks it is present only when the cost to the sender is greater than the benefit for the receiver. Lastly, for lies that benefit both the sender and the receiver, the so-called Pareto white lies, we show that the network structure actually favors the evolution of lying, but this only when the benefit for the sender is slightly greater than the benefit for the receiver. In this case again the small-world topology acts as an amplifier of the effect, while other network topologies fail to do the same. In addition to these main results we discuss several other findings, which together show clearly that the structure of interactions and the overall topology of the network critically determine the dynamics of lying.

PublisherAmerican Physical Society (APS)
JournalPhysical Review E
ISSN2470-0045
Electronic2470-0053
Publication dates
Print13 Mar 2020
Online13 Mar 2020
Publication process dates
Deposited27 Feb 2020
Submitted05 Oct 2019
Accepted24 Feb 2020
Output statusPublished
Accepted author manuscript
Copyright Statement

This is the accepted version of the manuscript "Lying on networks: the role of structure and topology in promoting honesty", published in the journal "Physical Review E" with an abstract available via the journal site at: https://doi.org/10.1103/PhysRevE.101.032305
©2020 American Physical Society

Digital Object Identifier (DOI)https://doi.org/10.1103/PhysRevE.101.032305
LanguageEnglish
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Capraro, V. and Cococcioni, G. 2015. Social setting, intuition, and experience in lab experiments interact to shape cooperative decision-making. Proceedings of the Royal Society B: Biological Sciences. 282 (1811). https://doi.org/10.1098/rspb.2015.0237
Social heuristics and social roles: Intuition favors altruism for women but not for men
Rand, D., Brescoll, V., Everett, J., Capraro, V. and Barcelo, H. 2016. Social heuristics and social roles: Intuition favors altruism for women but not for men. Journal of Experimental Psychology: General. 145 (4), pp. 389-396. https://doi.org/10.1037/xge0000154
Liking but devaluing animals: emotional and deliberative paths to speciesism
Caviola, L. and Capraro, V. 2020. Liking but devaluing animals: emotional and deliberative paths to speciesism. Social Psychological and Personality Science. 11 (8), pp. 1080-1088. https://doi.org/10.1177/1948550619893959
Priming intuition disfavors instrumental harm but not impartial beneficence
Capraro, V., Everett, J. and Earp, B. 2019. Priming intuition disfavors instrumental harm but not impartial beneficence. Journal of Experimental Social Psychology. 83, pp. 142-149. https://doi.org/10.1016/j.jesp.2019.04.006
Time pressure and honesty in a deception game
Capraro, V., Schulz, J. and Rand, D. 2019. Time pressure and honesty in a deception game. Journal of Behavioral and Experimental Economics. 79, pp. 93-99. https://doi.org/10.1016/j.socec.2019.01.007
Gender differences in the trade-off between objective equality and efficiency
Capraro, V. 2020. Gender differences in the trade-off between objective equality and efficiency. Judgment and Decision Making. 15 (4), pp. 534-544.
The effect of norm-based messages on reading and understanding COVID-19 pandemic response governmental rules
Bilancini, E., Boncinelli, L., Capraro, V., Celadin, T. and Di Paolo, R. 2020. The effect of norm-based messages on reading and understanding COVID-19 pandemic response governmental rules . Journal of Behavioral Economics for Policy. 4, pp. 45-55.
"Do the right thing" for whom? An experiment on ingroup favouritism, group assorting and moral suasion
Bilancini, E., Boncinelli, L., Capraro, V., Celadin, T. and Di Paolo, R. 2020. "Do the right thing" for whom? An experiment on ingroup favouritism, group assorting and moral suasion. Judgment and Decision Making. 15 (2), pp. 182-192.
Translucent players: explaining cooperative behavior in social dilemmas
Capraro, V. and Halpern, J. 2019. Translucent players: explaining cooperative behavior in social dilemmas. Rationality and Society. 31 (4), pp. 371-408. https://doi.org/10.1177/1043463119885102
Increasing altruistic and cooperative behaviour with simple moral nudges
Capraro, V., Jagfeld, G., Klein, R., Mul, M. and de Pol, I. 2019. Increasing altruistic and cooperative behaviour with simple moral nudges. Scientific Reports. 9 (1). https://doi.org/10.1038/s41598-019-48094-4
The evolution of lying in well-mixed populations
Capraro, V., Perc, M. and Vilone, D. 2019. The evolution of lying in well-mixed populations. Journal of The Royal Society Interface. 16 (156). https://doi.org/10.1098/rsif.2019.0211
The power of moral words: loaded language generates framing effects in the extreme dictator game
Capraro, V. and Vanzo, A. 2019. The power of moral words: loaded language generates framing effects in the extreme dictator game. Judgment and Decision Making. 14 (3), pp. 309-317.
Author correction: Group size effects and critical mass in public goods games
Pereda, M., Capraro, V. and Sánchez, A. 2019. Author correction: Group size effects and critical mass in public goods games. Springer Nature. https://doi.org/10.1038/s41598-019-49306-7
Group size effects and critical mass in public goods games
Pereda, M., Capraro, V. and Sánchez, A. 2019. Group size effects and critical mass in public goods games. Scientific Reports. 9 (1). https://doi.org/10.1038/s41598-019-41988-3
Grand challenges in social physics: in pursuit of moral behavior
Capraro, V. and Perc, M. 2018. Grand challenges in social physics: in pursuit of moral behavior. Frontiers in Physics. 6. https://doi.org/10.3389/fphy.2018.00107
Doing good vs. avoiding bad in prosocial choice: a refined test and extension of the morality preference hypothesis
Tappin, B. and Capraro, V. 2018. Doing good vs. avoiding bad in prosocial choice: a refined test and extension of the morality preference hypothesis. Journal of Experimental Social Psychology. 79, pp. 64-70. https://doi.org/10.1016/j.jesp.2018.06.005
Does the truth come naturally? Time pressure increases honesty in one-shot deception games
Capraro, V. 2017. Does the truth come naturally? Time pressure increases honesty in one-shot deception games. Economics Letters. 158, pp. 54-57. https://doi.org/10.1016/j.econlet.2017.06.015
Gender differences in moral judgment and the evaluation of gender-specified moral agents
Capraro, V. and Sippel, J. 2017. Gender differences in moral judgment and the evaluation of gender-specified moral agents. Cognitive Processing. 18 (4), pp. 399-405. https://doi.org/10.1007/s10339-017-0822-9
Deliberation favours social efficiency by making people disregard their relative shares: evidence from USA and India
Capraro, V., Corgnet, B., Espín, A. and Hernán-González, R. 2017. Deliberation favours social efficiency by making people disregard their relative shares: evidence from USA and India. Royal Society Open Science. 4 (2). https://doi.org/10.1098/RSOS.160605
To know or not to know? Looking at payoffs signals selfish behavior, but it does not actually mean so
Capraro, V. and Kuilder, J. 2016. To know or not to know? Looking at payoffs signals selfish behavior, but it does not actually mean so. Journal of Behavioral and Experimental Economics. 65, pp. 79-84. https://doi.org/10.1016/j.socec.2016.08.005
People making deontological judgments in the Trapdoor dilemma are perceived to be more prosocial in economic games than they actually are
Capraro, V., Sippel, J., Zhao, B., Hornischer, L., Savary, M., Terzopoulou, Z., Faucher, P. and Griffioen, S. 2018. People making deontological judgments in the Trapdoor dilemma are perceived to be more prosocial in economic games than they actually are. PLoS ONE. 13 (10). https://doi.org/10.1371/journal.pone.0205066
Gender differences in altruism on Mechanical Turk: expectations and actual behaviour
Branas-Garza, P., Capraro, V. and Rascon Ramirez, E. 2018. Gender differences in altruism on Mechanical Turk: expectations and actual behaviour. Economics Letters. 170, pp. 19-23. https://doi.org/10.1016/j.econlet.2018.05.022
Gender differences in lying in sender-receiver games: a meta-analysis
Capraro, V. 2018. Gender differences in lying in sender-receiver games: a meta-analysis. Judgment and Decision Making. 13 (4), pp. 345-355.
Hierarchical invasion of cooperation in complex networks
Vilone, D., Capraro, V. and Ramasco, J. 2018. Hierarchical invasion of cooperation in complex networks. Journal of Physics Communications. 2 (2). https://doi.org/10.1088/2399-6528/aaab2e
Do the right thing: experimental evidence that preferences for moral behavior, rather than equity or efficiency per se, drive human prosociality
Capraro, V. and Rand, D. 2018. Do the right thing: experimental evidence that preferences for moral behavior, rather than equity or efficiency per se, drive human prosociality. Judgment and Decision Making. 13 (1), pp. 99-111.
Push, don't nudge: behavioral spillovers and policy instruments
d'Adda, G., Capraro, V. and Tavoni, M. 2017. Push, don't nudge: behavioral spillovers and policy instruments. Economics Letters. 154, pp. 92-95. https://doi.org/10.1016/j.econlet.2017.02.029
Deliberation favours social efficiency by making people disregard their relative shares: evidence from US and India
Capraro, V., Corgnet, B., Espín, A. and Hernán-González, R. 2017. Deliberation favours social efficiency by making people disregard their relative shares: evidence from US and India. Royal Society Open Science. 4 (2). https://doi.org/10.1098/rsos.160605
Partner selection supported by opaque reputation promotes cooperative behavior
Capraro, V., Giardini, F., Vilone, D. and Paolucci, M. 2016. Partner selection supported by opaque reputation promotes cooperative behavior. Judgment and Decision Making. 11 (6), pp. 589-600.