Social Boundaries and Networks in the Diffusion of Innovations: a Short Introduction

this short introduction briefly recalls how sociological theories and formal methods for social networks can help to interpret diffusion processes of ancient cultural traits. it also provides a presentation of the selected papers. these papers focus not on the ways archaeological data can be represented in a relational format, but on the potential of specific sociological network-related models to gain insights into the underlying mechanisms of diffusion processes. the necessity to develop more fine-grained information to reconstruct ancient local social networks is underlined while three aspects of the diffusion process are explored: (a) situations in which cultural practices are not borrowed in spite of contact between groups; (b) situations in which cultural practices are adopted; and (c) situations in which cultural practices in one group are copied by people from another group. all of them take inspiration from sociological studies of diffusion processes through networks, although to different extents.