'Binge' drinking in the UK: a social network phenomenon
  We analyse the recent rapid growth of 'binge' drinking in the UK. This means the consumption of large amounts of alcohol, especially by young people, leading to serious anti-social and criminal behaviour in urban centres. We show how a simple agent-based model, based on binary choice with externalities, combined with a small amount of survey data can explain the phenomenon. We show that the increase in binge drinking is a fashion-related phenomenon, with imitative behaviour spreading across socila networks The results show that a small world network, rather than a random or scale free, offers the best description of the key aspects of the data 
Paul Ormerod and Greg Wiltshire