payoff ;;if their payoff is better than mine, imitate them
[set strategy [strategy] of best-neighbor]
]
end
to-report coop-freq
let x count turtles with [strategy = 1]
report x / (count turtles)
end
; Copyright 2023 Paul E. Smaldino.
; See Info tab for full copyright and license.]]>plot (count turtles with [strategy = 1]) / (count turtles)## Model Information and Materials
This model is original material created by Paul E. Smaldino.
## References and Citation
For this model:
* Smaldino PE (2023). Prisoner's Dilemma Game: Reciprocity. Modeling Social Behavior. https://github.com/psmaldino/modsoc/
For the book:
* Smaldino PE (2023). Modeling Social Behavior: Mathematical and Agent-Based Models of Social Dynamics and Cultural Evolution. Princeton University Press.
For the NetLogo:
* Wilensky, U. (1999). NetLogo. http://ccl.northwestern.edu/netlogo/. Center for Connected Learning and Computer-Based Modeling, Northwestern University, Evanston, IL.
## Licence
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. http://creativecommons.org/licenses/by-nc-sa/4.0/setup repeat 75 [ go ]setupgocoop-freqsetupgocoop-freq