Institutions as Mechanisms of Cultural Evolution: Prospects of the Epidemiological Approach

Studying institutions as part of the research on cultural evolu- tion prompts us to analyze one very important mechanism of cultural evolution: institutions do distribute cultural variants in the population. Also, it enables relating current research on cultural evolution to some more traditional social sciences: institutions, often seen as macro-social entities, are analyzed in terms of their constitutive micro-phenomena. This article presents Sperber's characterization of institutions, and then gives some hints about the set of phenomena to which it ap- plies. Culture evolves through the advent of cognitive causal chains, which span across individuals and their environment, and which distribute mental representations and public pro- duction in the population and its habitat. Institutions are char- acterized by the specific causal chains that distribute repre- sentations. These chains include representations that cause the recurrence of a series of events and thus regulate the distri- bution of a set of representations to which they themselves belong. Saying that some cultural phenomenon is an institu- tion is, in this theoretical framework, explaining that some representations that are part of the cultural phenomenon cause it to endure. This technical characterization applies to what is usually understood as institutions, from marriage to money. It also opens the way for the analysis of complex phenomena in cul- tural evolution, such as the maintenance of cultural niches and the distribution of labor.