Roger Dion, toujours vivant !

Ecole Doctorale Complexité du vivant

Faut-il toujours suivre Nash?

One of the most frequently used criticism about game theory is that it is based on models in which moves and payoff are fixed in advance. In this paper we introduce a new game theoretic model in which agents can not build good strategies without analysing payoff matrices. In this agents interactions modelling iterated game we show that a well reputed notion of micro-economics, Nash equilibrium,...

Dion, Theon, and the Many-thinkers Problem

My solution to the problem of Dion and Theon (Burke 1994a) employs the doctrine of sortal essentialism.1 Jim Stone (2002) objects to my solution and proposes to weaken the doctrine so as to block my employment of it. Others question a different element of my solution: the maximality of personhood and thinkerhood. After opposing Stone's weakening of sortal essentialism, and responding in a preli...

Roger Clarke

The search for viable eBusiness models continues. But important information is being overlooked. Discussions of open source software all too often focus on the limited context of Microsoft appearing to feel threatened by what it portrays as unbusinesslike competition from Linux and OpenOffice.org; whereas that debate is merely one small facet of the whole. Moreover, in addition to software, a g...

Roger Hanlon

Megadamania The global desire to develop energyhungry industries and Western lifestyles, combined with the necessity to do so without further increasing the use of fossil fuels, has led to a massive spree of dam building around the world. A recent assessment by Christiane Zarfl from the Leibniz Institute of Freshwater Ecology and Inland Fisheries at Berlin, Germany, and colleagues estimates tha...