Christopher X J. Jensen
Associate Professor, Pratt Institute

Cath Dennis publishes non-computerized classroom adaptation of Axelrod’s iPD Tournament

Posted 30 May 2014 / 0

I have corresponded with Cath Dennis of the University of Aberdeen, as we both share an interest in how to bring some of the foundational work exploring cooperation into our classrooms. She has just published one of her classroom activities — an “analog” version of Robert Axelrod’s iPD tournaments — in the Journal of Biological Education.

A Minor Post, Articles, Cooperation, Evolution Education, Evolutionary Modeling, Game Theory, Reciprocity, Teaching Tools

CNN tackles climate change by explaining public goods games!

Posted 15 Jan 2014 / 0

I almost fell out of my seat when I found this video while searching for a concise source explaining why we don’t have an international climate change agreement. This short television piece is basically trying to explain the dynamics of climate change agreement as depicted by Milinski and colleagues (2008) in their PNAS paper “The collective-risk Read More

A Minor Post, Climate Change, Environmental Justice, Film, Television, & Video, Game Theory, Sustainability, Web

Does self organization of social networks foster cooperation in the face of cheating?

Posted 11 Oct 2013 / 0

Web Information Systems Engineering – WISE 2013 “A Study on the Evolution of Cooperation in Networks“

A Minor Post, Articles, Game Theory, Social Networks, System Stability

More press for paper that de-bunks the zero determinant superiority

Posted 03 Sep 2013 / 0

There has been additional coverage of the paper showing that “zero determinant” strategies in the Prisoner’s Dilemma are not evolutionarily robust: “Generosity leads to evolutionary success, biologists show” Popular Science “Evolution Punishes Selfish People, Game Theory Study Says” Here’s the original paper: Proceedings of the National Academy of Sciences USA “From extortion to generosity, evolution Read More

A Minor Post, Articles, Cooperation, Game Theory, Modeling (General), System Stability, Web

Zero determinant strategy is just another short-term adaptation

Posted 15 Aug 2013 / 0

The Scientist “A Twist in Evolutionary Game Theory: Biologists demonstrate the instability of employing a selfish strategy in the prisoner’s dilemma game” Nature Communications “Evolutionary instability of zero-determinant strategies demonstrates that winning is not everything” I am so glad to see that someone did the math and simulations to look at the long-term stability of Read More

A Minor Post, Adaptation, Articles, Behavior, Coevolution, Cooperation, Evolutionary Modeling, Game Theory, Individual-based Models, Phenotypic Plasticity, Punishment, Reciprocity, System Stability

A spatial version of the Traveler’s Dilemma allows cooperation to persist

Posted 23 Mar 2013 / 0

PLos ONE “Evolution of Cooperation in Spatial Traveler’s Dilemma Game“

A Minor Post, Cooperation, Game Theory, Reciprocity, Spatially Explicit Modeling

Understanding kin selection and reciprocity when strategies are culturally propagated

Posted 16 Mar 2013 / 0

arXiv “Self-Organization Promotes the Evolution of Cooperation with Cultural Propagation“

A Minor Post, Cooperation, Cultural Evolution, Evolutionary Modeling, Game Theory, Kin Selection, Reciprocity

Freeman Dyson wins the contest, and then says the contest is stupid

Posted 07 Dec 2012 / 0

Institute for Advanced Study “The Prisoner’s Dilemma” One of my favorite skateboarders when I was young was Natas Kaupas, an innovative skater who pioneered a lot of modern streetstyle. Natas was one of those skaters who could do things that no other skateboarders could, but he was not particularly successful in one arena that was Read More

A Minor Post, Articles, Cooperation, Evolutionary Modeling, Game Theory, Group Selection, Human Evolution, Modeling (General), Multilevel Selection, Reciprocity

Making the formation of social networks more realistic also makes them more cooperative

Posted 11 Nov 2012 / 0

Physical Review E “Building cooperative networks“

A Minor Post, Articles, Coevolution, Cooperation, Cultural Evolution, Evolutionary Modeling, Game Theory, Social Networks

Freeman Dyson calls the Prisoner’s Dilemma “an amusing toy”

Posted 17 Oct 2012 / 0

This is from the events calendar of Howard University, where Freeman Dyson gave a talk on October 12, 2012. Just in case this disappears from the web, here is the abstract of his talk: “The Prisoner’s Dilemma: Is it a model for the evolution of cooperation in the real world, or is it only a Read More

A Minor Post, Altruism, Cooperation, Evolution, Evolutionary Modeling, Game Theory, Group Selection, Web