Leaders should not be conformists in evolutionary social dilemmas
Attila Szolnoki, Matjaz Perc

TL;DR
This paper investigates the role of conformity in evolutionary social dilemmas, showing that collective benefits arise when leaders do not conform, whereas leader conformity hampers cooperation and coordination.
Contribution
It demonstrates that non-conforming leaders enhance cooperation in heterogeneous populations, contrasting with the negative effects of conformist leadership on social dynamics.
Findings
Conformity among the general population promotes cooperation.
Forcing leaders to conform impairs coordination and reduces social welfare.
Non-conforming leaders are essential for optimal network reciprocity.
Abstract
The most common assumption in evolutionary game theory is that players should adopt a strategy that warrants the highest payoff. However, recent studies indicate that the spatial selection for cooperation is enhanced if an appropriate fraction of the population chooses the most common rather than the most profitable strategy within the interaction range. Such conformity might be due to herding instincts or crowd behavior in humans and social animals. In a heterogeneous population where individuals differ in their degree, collective influence, or other traits, an unanswered question remains who should conform. Selecting conformists randomly is the simplest choice, but it is neither a realistic nor the optimal one. We show that, regardless of the source of heterogeneity and game parametrization, socially the most favorable outcomes emerge if the masses conform. On the other hand, forcing…
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