Influence of Luddism on innovation diffusion
Andrew Mellor, Mauro Mobilia, Sidney Redner, Alastair M. Rucklidge,, Jonathan A. Ward

TL;DR
This paper extends the classical innovation diffusion model by including Luddites who oppose adoption, analyzing how their presence affects the spread and final extent of innovation across different network topologies.
Contribution
It introduces a generalized model incorporating Luddites, ignorants, susceptibles, and adopters, and analyzes the impact of adoption rate and network structure on diffusion outcomes.
Findings
Slow adoption leads to widespread diffusion with fewer Luddites.
Fast adoption results in rapid spread but limited overall adoption due to Luddites.
Network topology significantly influences the final distribution of adopters.
Abstract
We generalize the classical Bass model of innovation diffusion to include a new class of agents --- Luddites --- that oppose the spread of innovation. Our model also incorporates ignorants, susceptibles, and adopters. When an ignorant and a susceptible meet, the former is converted to a susceptible at a given rate, while a susceptible spontaneously adopts the innovation at a constant rate. In response to the \emph{rate} of adoption, an ignorant may become a Luddite and permanently reject the innovation. Instead of reaching complete adoption, the final state generally consists of a population of Luddites, ignorants, and adopters. The evolution of this system is investigated analytically and by stochastic simulations. We determine the stationary distribution of adopters, the time needed to reach the final state, and the influence of the network topology on the innovation spread. Our model…
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