Liquid democracy is a proxy voting method where proxies are delegable. We propose and study a game-theoretic model of liquid democracy to address the following question: when is it rational for a voter to delegate her vote? We study the existence of pure-strategy Nash equilibria in this model, and how group accuracy is affected by them. We complement these theoretical results by means of agent-based simulations to study the effects of delegations on group's accuracy on variously structured social networks.

Intelligent and autonomous systems

Bloembergen, D, Grossi, D, & Lackner, M. (2019). On rational delegations in liquid democracy. In Proceedings of the AAAI Conference on Artificial Intelligence (pp. 1796–1803).