Sociative causation is a particular type of causation, where the causer not only makes the causee do an action, but also participates in it. Guillaume & Rose (2010) advance the hypothesis that a dedicated marker for sociative causation could be an areal feature of South America. The goal of the present paper is to reassess this areality with a controlled method, based on a balanced sample of 300 languages. Preliminary results confirm that dedicated sociative causative markers are much more frequent in South America than elsewhere, and that this also holds of sociative causation uses of other constructions.