Parameter Evaluation of a Simple Mean-Field Model of Social Interaction

Details Parameter Evaluation of a Simple Mean-Field Model of Social Interaction Parameter Evaluation of a Simple Mean-Field Model of Social Interaction

2008-10-16

arxiv.org/abs/0810.3029v3

Physics

Physics and Society

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Scientific paper

The aim of this work is to implement a statistical mechanics theory of social interaction, generalizing econometric discrete choice models. A class of simple mean field discrete models is introduced and discussed both from the theoretical and phenomenological point of view. We propose a parameter evaluation procedure and test it by fitting our model against three families of data coming from different cases: the estimated interaction parameters are found to have similar positive values establishing a quantitative confirmation of the peer imitation behavior found in social psychology. Moreover all the values of the interaction parameters belong to the phase transition regime suggesting its possible role in the study of social systems.

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