Showing papers by "Gérard Weisbuch published in 1998"
Posted Content•
TL;DR: The dynamics of the society, represented by economic and cultural variables, coupled to the fishery represented by fish abundance, is discussed, including one with endogenous crises.
Abstract: Cultures can be viewed as sets of beliefs and techniques allowing societies to cope with their environment. We here propose simple and explicit schemes showing how fishermen could encode beliefs about a renewable resource, fish. We then discuss the dynamics of the society, represented by economic and cultural variables, coupled to the fishery represented by fish abundance. According to different coding schemes and sets of parameters, several dynamical regimes are observed, including one with endogenous crises.
11 citations
Posted Content•
TL;DR: In this paper, the authors analyzed the evolution of trading relationships in a market in which trades take place bilaterally and showed that two distant types of behaviour "loyalist" and "shopper" emerge and that the transition from one to the other is abrupt.
Abstract: This paper analyses the evolution of trading relationships in a market in which trades take place bilaterally. Buyers reinforce their probability of visiting sellers as a function of the profitability of their past experience. Using the "mean field" approach it is shown that two distant types of behaviour "loyalist" and "shopper" emerge and that the transition from one to the other is abrupt. These results are confirmed by simulations of more complicated versions of the model.
5 citations