From Simulated Citizens to Simulated Deliberation: Challenges in Representation and Interaction
Chaemin Jang, Junsik Min, Jaewoo Choi, Donggyu Lee, Haiin Lee, Junyoung Park, Namhee Kim, Hyunwoo Kim, Jungwon Kim, Juho Kim, Nuri Kim, Jihee Kim
Accepted at SocialAgent and UserSim workshops, NeurIPS 2026
Simulating a deliberating public needs agents whose opinions reflect a population and change through discussion. Across six LLMs, national surveys, controlled experiments and the 2017 Shin-Kori deliberative poll, agents argue convincingly but represent opinion too narrowly, and change positions even when they cannot see each other.