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"Doing what others do" does not stabilize continuous norms.

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Summary
This summary is machine-generated.

Social norms can vary continuously, not just in discrete forms. Mathematical models show environmental and individual factors, not just social pressure, shape these norms, allowing for optimal solutions.

Keywords:
cultural evolutionmathematical modelnorm evolutionary dynamicssocial norms

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Area of Science:

  • Evolutionary biology
  • Social sciences
  • Behavioral economics

Background:

  • Social norms drive behavioral variation across human populations.
  • Previous models assumed discrete norm variants, limiting understanding of continuous behavioral strategies.
  • Deviance is often deterred by social sanctions and coordination failures.

Purpose of the Study:

  • To develop a mathematical model for the evolutionary dynamics of continuously varying social norms.
  • To investigate how continuous variation in social payoffs affects norm stability and diversity.
  • To explore the influence of environmental pressures, individual preferences, and cognitive factors on norm evolution.

Main Methods:

  • Mathematical modeling of evolutionary game theory.
  • Analysis of continuously varying behavioral strategies and social payoffs.
  • Simulation of norm dynamics under varying environmental and individual pressures.

Main Results:

  • Continuous variation in social payoffs does not lead to multiple stable equilibria.
  • Environmental pressures, individual preferences, and cognitive factors significantly influence norm outcomes, even if weak.
  • Populations linked by migration converge to a single norm in the absence of other factors.

Conclusions:

  • The content of social norms is less arbitrary and historically constrained than previously thought.
  • Norms can evolve towards optimal individual or group-level solutions.
  • Stable cooperative norms may require evolved moral preferences, not solely social sanctions.