This paper introduces a new approach for studying behaviour in information networks. Index number theory, which has been developed in the context of comparing income and prices across countries, regions or over time, is used to derive indexes of information consumption. In particular, we...

We address the emergence of innovations among online activists: why do some actors choose to connect to new issues, whilst others do not? To answer this question, we operationalise ‘field theory’ using social network analysis (SNA). SNA measures the properties of nodes, ties, and clusters...