“Assessing influence and selection in network-behavioural co-evolution, with an application to smoking and alcohol consumption among adolescents.”

This presentation gives some empirical results on how smoking behaviour and alcohol consumption of pupils affect friendship formation (selection mechanisms), how vice versa friendships affect smoking behaviour and alcohol consumption (influence mechanisms), and how smoking behaviour and alcohol consumption affect each other. With the actor-driven approach outlined in the presentation below, it is for the first time possible to assess the relative strength of both mechanisms in a statistically adequate way.

The slides were presented at the RC33 Sixth International Conference on Social Science Methodology (17-20 August 2004, Amsterdam).
An earlier version was presented at the XXIV Sunbelt conference (May 16-20 2004, Portorož).

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