Buongiorno inoltro l'annuncio del OWPS di domani. Saluti Alessandra ---------- Forwarded message --------- Da: One World Probability ow.probability@gmail.com Date: mer 26 mag 2021 alle ore 08:01 Subject: [owps] Talks thursday May 27 To: owps@lists.bath.ac.uk

Dear All,

we have a session on opinion dynamics tomorrow, namely talks by Elchanan Mossel and Timo Vilkas, see below. Remember that we start 14:00 UTC which is 16:00 CET!

14:00-15:00 Elchanan Mossel Opinion Exchange Dynamics

I will survey some of the main opinion exchange dynamics models that were invented in probability theory and in economics.

I will then discuss ``martingale models" - models where the opinion of each agent forms a martingale.

I will highlight some recent large-deviation and graph-limit perspectives of these models.

Based on:

Mossel, Elchanan, Allan Sly, and Omer Tamuz. "Asymptotic learning on bayesian social networks." Probability Theory and Related Fields 158.1-2 (2014): 127-157.

Mossel, Elchanan, Allan Sly, and Omer Tamuz. "Strategic learning and the topology of social networks." Econometrica 83.5 (2015): 1755-1794.

Mossel, Elchanan, and Omer Tamuz. "Opinion exchange dynamics." Probability Surveys 14 (2017): 155-204.

Harel, Matan, Elchanan Mossel, Philipp Strack, and Omer Tamuz. "Rational groupthink." The Quarterly Journal of Economics 136, no. 1 (2021): 621-668.

15:00 - 16:00 UTC Timo Vilkas Long-term behavior in opinion dynamics: clustering vs. consensus and local vs. global

Using the examples of the well-known voter model (Holley & Liggett, 1975) and a lesser-known bounded confidence model. introduced by Deffuant et al. (2000), I want to discuss common limit behavior in interacting particle systems modelling opinion dynamics. Both the transition from clustering to consensus formation and the dichotomy between weak (local) and strong (global) consensus will play a central role.

The Zoom link is on the OWPS webpage. It can also be accessed directly via

https://tum-conf.zoom.us/j/69810931142 https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftum-conf.zoom.us%2Fj%2F69810931142&data=04%7C01%7Cowps%40lists.bath.ac.uk%7Cd7382e676a9944fb14f108d9200b879e%7C377e3d224ea1422db0ad8fcc89406b9e%7C0%7C0%7C637576056300032462%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=86Y6OeyG3ctkbTckT%2Fno8l6KT%2BMqGdJ3zOiTd1uT%2FDk%3D&reserved=0

Meeting-ID: 698 1093 1142 Kenncode: 435370

Best wishes, Julien and Nina