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Source Code of K. Itao and K. Kaneko "Evolution of Kinship Structures Driven by Marriage Tie and Competition" PNAS, 2020)

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Evolution of Kinship Structures

Source Code of K. Itao and K. Kaneko "Evolution of Kinship Structures Driven by Marriage Tie and Competition" PNAS, 2020, https://www.pnas.org/content/pnas/117/5/2378.full.pdf and K. Itao and K. Kaneko "Emergence of Kinship Structures and Descent Systems: Multi-level Evolutionary Simulation and Empirical Data Analyses" arXiv, 2021, https://arxiv.org/abs/2105.08014.

One-trait model

We build a simple model of family groups, in which exchange of brides and resultant cooperation and competition are considered, by applying an agent-based model and multi-level evolution. By introducing one dimensional trait and preference, we show the emergence of the incest taboo.

Run one-trait/emergy.py to get the phase diagrams on the emergence of the incest taboo.
Run one-trait/plot.py to get the visual images on the emergence of the incest taboo.

Two-trait model

By introducing two dimensional trait and preference, we show the emergence of kinship structures.

Run two-trait/emergy.py to get the phase diagrams on the emergence of kinship structures.
Run two-trait/plot.py to get the visual images on the emergence of kinship structures.

Revised model

We simplify the two-traiit model and discuss the evolution of kinship structures and descent systems.

Run revised/structure.py for the simulation.

Empirical data analyses

Data analyses using global ethnographic database, the Standard Cross-Cultural Sample are conducted. See data_analysis for details.

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MIT

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Source Code of K. Itao and K. Kaneko "Evolution of Kinship Structures Driven by Marriage Tie and Competition" PNAS, 2020)

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