Relaxing Common Belief for Social Networks
summary
Paper defines common P_mu belief (a factional-belief relaxations of common belief) and proves it undergirds partial approximate coordination in threshold revolt games. Exact revolt decision is NP‑hard, but the promised revolt problem admits a polynomial‑time algorithm when maximum degree is bounded and delta(N)→0. A surprising corollary is a degree-sequence-only algorithm that needs no edge list. Methods combine equilibrium characterization, reductions, and simulations that map how equilibrium revolt sizes vary with network and model parameters.
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chapters (18)
- 0:00Intro
- 1:35Network Revolt Games: Example
- 5:58Limitations of Previous Work
- 10:20Our Network Revolt Game Model: The Network
- 10:33Our Model: The Agents
- 12:33Our Model: The Solution Concept
- 13:03Motivating Example: Model
- 13:52Motivating Example: Proposition
- 14:23Motivating Example: Intuition
- 16:04An Algorithmic Perspective: The Fundamental Case
- 17:33A Formal Problem: REVOLT
- 18:14A Relaxed Problem: PROMISE REVOLT
- 19:13Illustrating PROMISE REVOLT
- 20:09Relating REVOLT, PROMISE REVOLT to Factional Be
- 20:36Main Technical Result
- 21:17Surprising Corollary to our Analysis
- 21:38Extensions of the Fundamental Case
- 22:24Future Work and Open Questions
