Social Dynamics
Routing Summary
This topic covers social interaction mechanisms in agent-based consumer models. Contains 3 sub-topics and 6 total notes.
- For WOM and opinion leaders → Word of Mouth
- For network formation and diffusion dynamics → Networks and Diffusion
- For emergent market-level outcomes → Market Dynamics
Sub-topics
- Word of Mouth — COVERS: WOM propagation mechanisms (positive/negative), opinion leader definitions (exogenous vs emergent), influence amplification, two-step flow of communication
- Networks and Diffusion — COVERS: preference-based network formation, spatial perception fields, product adoption value function, S-curve dynamics, network topology effects (random vs clustered), two-wave adoption
- Market Dynamics — COVERS: brand lock-in from initial dominance, cyclic market share competition, imitation cascade mechanism, age-dependent attitude convergence
Cross-Cutting Concepts
- Positive feedback loops: WOM creates positive feedback (more users → more WOM → more users) that drives both adoption S-curves (Product Adoption and Diffusion Models) and lock-in effects (Market Share Equilibrium and Lock-In)
- Local vs global information: All three sub-topics depend on agents using local rather than global information — local WOM, local network neighbors, local market observations
Sources
- abm_consumer.pdf — WOM utility, opinion leaders, preference networks
- abm_human_behaviour.pdf — Imitation process, market share dynamics
- abm_word_of_mouth.pdf — Adoption model, topology experiments