The Rise of the Network Society
The network as an organisational form that replaces industrial hierarchy.
Castells argues that the informational technology revolution is building a new social structure where power and productivity depend on the ability to connect to information networks.
Hierarchical organisations lose their edge against networked ones. Dense and academic, but canonical.
Offers the sociological frame that complements the economic frame of Coase and Williamson.
Central argument
Castells argues that the informational technology revolution of the late 20th century is not merely an economic shift but a structural transformation of society itself, producing a new dominant organizational logic: the network. In this new social structure, power and productivity no longer accrue to hierarchical institutions but to nodes capable of connecting to and navigating information networks. Firms, states, and individuals that cannot interface with these networks are structurally marginalized, regardless of their traditional assets or authority.
Critique
Castells wrote at the peak of techno-optimism in the mid-1990s, and his framework risks conflating the rise of network infrastructure with the dissolution of hierarchy — a conflation that subsequent decades complicated: platform monopolies like Google and Amazon are simultaneously networked and profoundly hierarchical, concentrating power rather than distributing it. The theory struggles to account for how network architectures can reconstitute centralization at a higher level of abstraction, which limits its predictive and prescriptive value for understanding how digital power actually consolidates.
Why it matters for product
For a CPO, Castells provides the sociological grounding to argue that organizational design is not an HR concern but a strategic one: a product team structured as a hierarchy with sequential handoffs is epistemically mismatched to a networked competitive environment where discovery, delivery, and feedback must flow laterally and continuously. His framework also sharpens the question of platform strategy — whether a digital product is building a node others want to connect to, or merely a feature within someone else's network — which is a more precise lens for evaluating long-term product positioning than conventional market-share analysis.