Calendrier du 16 avril 2020
TOM (Théorie, Organisation et Marchés) Lunch Seminar
Du 16/04/2020 de 14:00 à 15:00
online
HAGENBACH Jeanne (Sciences Po)
Selective Memory of a Psychological Agent
écrit avec Frédéric Koessler
We consider a single psychological agent whose utility depends on his action, the state of the world but also the belief that he holds about that state. The agent is initially informed about the state. Before action, he decides which states to remember and which ones to forget. We model the memory selection process by a multi-self game in which the informed first self discloses information to the uninformed second self with identical preferences. While it can be that perfect recall does not occur in equilibrium, we identify broad categories of psychological utility functions in which it does. We next add the possibility of an exogenous probability of forgetting and examine how it changes selective memory.
Du 16/04/2020 de 11:00 à 12:00
Using ZOOM
GERMAIN Gauthier (CREST)
The Yellow Vests - Online and Offline
écrit avec Pierre Boyer, Thomas Delemotte, Vincent Rollet and Benoit Schmutz
This paper studies the Gilets jaunes (yellow vests) movement, a series of highly mediatized, large scale protests which emerged in France in 2018. The movement presents two specific features: (i) demonstrations were highly decentralized on the French territory; (ii) social media played a major role in the diffusion and organization of protests. To study both of these dimensions, this paper brings together unique data on the online activities of the yellow vests (Facebook interactions and online petitioning), their physical demonstrations (blockades on roundabouts), and administrative data at the regional level. We first focus on the spatial determinants of the mobilization. Economic precarity, low turn out levels and low spatial fractionalization best characterize highly mobilized regions. We then disentangle the interaction between online and offline mobilization. We show that low commitment online activities - such as signing the petition against taxes on gasoline prior to the movement's formation - signal a latent potential for mobilization. As protests unfold, group formation on Facebook and online demonstrations seem directly linked as complements in a self-reinforcing loop. Finally, to further investigate the movement's motivations and concerns, we analyze a large corpus of 21 million Facebook interactions related to the yellow vests. At the movement's start, Facebook is used as means to organize protests and share demands, but as conflicts with the police intensify, main topics of interest are progressively shifted towards police violence and government critiques.
Travail et économie publique externe
Du 16/04/2020 de 11:00 à 12:00
Using ZOOM
GERMAIN Gauthier (CREST)
The Yellow Vests - Online and Offline
écrit avec Pierre Boyer, Thomas Delemotte, Vincent Rollet and Benoit Schmutz
This paper studies the Gilets jaunes (yellow vests) movement, a series of highly mediatized, large scale protests which emerged in France in 2018. The movement presents two specific features: (i) demonstrations were highly decentralized on the French territory; (ii) social media played a major role in the diffusion and organization of protests. To study both of these dimensions, this paper brings together unique data on the online activities of the yellow vests (Facebook interactions and online petitioning), their physical demonstrations (blockades on roundabouts), and administrative data at the regional level. We first focus on the spatial determinants of the mobilization. Economic precarity, low turn out levels and low spatial fractionalization best characterize highly mobilized regions. We then disentangle the interaction between online and offline mobilization. We show that low commitment online activities - such as signing the petition against taxes on gasoline prior to the movement's formation - signal a latent potential for mobilization. As protests unfold, group formation on Facebook and online demonstrations seem directly linked as complements in a self-reinforcing loop. Finally, to further investigate the movement's motivations and concerns, we analyze a large corpus of 21 million Facebook interactions related to the yellow vests. At the movement's start, Facebook is used as means to organize protests and share demands, but as conflicts with the police intensify, main topics of interest are progressively shifted towards police violence and government critiques.