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Una simple regla para la evolución de la cooperación en gráficos y redes sociales
Hisashi Ohtsuki1, Christoph Hauert, Erez Lieberman
1Department of Biology, Kyushu University, Fukuoka 812-8581, Japan.
Nature
|May 26, 2006
Resumen
La cooperación puede evolucionar en poblaciones estructuradas cuando la relación beneficio-costo del altruismo excede el número promedio de vecinos. Esta simple regla explica la cooperación en la cooperación.
Área de la Ciencia:
- Biología evolutiva Biología evolutiva.
- Teoría de juegos Teoría de juegos.
- Ciencia de la red Ciencia de la red Ciencia de la red
Sus antecedentes:
- La cooperación es fundamental para los sistemas biológicos, desde las células hasta los grupos de animales.
- La selección natural en poblaciones no estructuradas favorece las estrategias no cooperativas (desertores).
- La comprensión de la cooperación en poblaciones estructuradas (redes sociales) es un área de investigación clave.
Objetivo del estudio:
- Identificar una regla general que gobierne la evolución de la cooperación en poblaciones estructuradas.
- Para probar esta regla a través de diversas estructuras de red.
Principales métodos:
- Análisis de juegos evolutivos jugados en varias estructuras gráficas.
- Derivación de una condición para la selección natural para favorecer la cooperación.
Principales resultados:
- Una condición simple, b/c > k, predice la evolución de la cooperación.
- b/c representa la relación entre el beneficio y el costo de un acto altruista.
- k representa el número promedio de vecinos en la red.
Conclusiones:
- La cooperación puede ser favorecida por la selección natural en poblaciones estructuradas si b/c > k. k.
- Este principio se aplica en varios tipos de redes, incluidas las redes sin escala.
- La cooperación puede surgir debido a la "viscosidad social" sin reputación o estrategias complejas.
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