UMR 5824

Groupe d'Analyse et de Théorie Economique

GATE Lyon Saint-Étienne is a research unit affiliated to the CNRS (French National Centre for Scientific Research), the Université Lumière Lyon 2, the Jean Monnet University and emlyon.

Workshop "GATE on the Docks"

The “GATE on the Docks” scientific day marks the arrival of our research institute in the city center of Lyon.

2nd Amsterdam/Saint-Etienne Workshop on Social Choice

The Groupe d'Analyse et de Théorie Economique (GATE) at the Saint-Etienne School of Economics, in collaboration with the Institute for Logic, Language and Computation (ILLC) at the University of Amsterdam, will host the 2nd Amsterdam/Saint-Etienne Workshop on Social Choice on 14-15 March 2024 in the centre of Saint-Etienne.

Forthcoming events

All events
Apr
18
Thu
2024
Ritwik Banerjee
Apr 18 @ 10 h 45 – 12 h 00
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Apr
29
Mon
2024
Tomohiro Hirano (Royal Holloway, University of London) – TBA
Apr 29 @ 11 h 00 – 12 h 15
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Shuguang Jiang
Apr 29 @ 14 h 00 – 16 h 15
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Apr
30
Tue
2024
Dinko Dimitrov (Saarland University) – Seemingly Informative Matching Mechanisms
Apr 30 @ 10 h 30 – 11 h 45

We consider a model where market participants can observe the identity of the agents they can be matched with but not their types. A mechanism generates a matching and an announcement at each reported type profile. For the case of one-sided incomplete information, we fully characterize the set of matching states which are both minimally informative and stable, and show that not every assortative matching mechanism is ex-post incentive compatible. Our main result states that every seemingly informative assortative matching mechanism is ex-post incentive compatible. Such mechanisms become manipulable when incompleteness of information applies to both sides of the market.

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May
6
Mon
2024
Isabelle Salle (U of Ottawa) — TBA
May 6 @ 11 h 00 – 12 h 15
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May
7
Tue
2024
Cars Hommes
May 7 @ 10 h 45 – 12 h 00
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Cars Hommes (University of Amsterdam) — TBA
May 7 @ 10 h 45 – 12 h 00
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May
13
Mon
2024
Michele Fioretti (Sciences Po Paris) — TBA
May 13 @ 11 h 00 – 12 h 15
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May
14
Tue
2024
Vassili Vergopoulos (Université Paris 2)
May 14 @ 10 h 30 – 11 h 45
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May
21
Tue
2024
Sudipta Sarangi (Virginia Tech) – Games Under Network Uncertainty
May 21 @ 10 h 30 – 11 h 45

We consider an incomplete information network game in which agents are only aware of the identity of their immediate neighbors. They form beliefs about the links of their neighbors (the rest of the network) and play a linear-quadratic effort game to maximize interim payoffs. We establish the existence and uniqueness of Bayesian-Nash equilibria in pure strategies. In equilibrium, agents use local knowledge of their direct connections to make inferences about the complementarity strength of their actions with other agents given by their updated beliefs regarding their walks in the network. Using this and an example we show that under incomplete information, besides network architecture, agent identity plays a crucial role in determining strategic behavior. We also characterize equilibrium behavior under different forms of ex-ante prior beliefs like uniform priors, Erdos-Renyi network generation, and homophilic linkage. Not surprisingly, uniform priors provide similar results similar to degree-based models of incomplete information.

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Last publications

All publications

Journal articles

2024

ref_biblio
Zoé Iannuzzi, Brice Mourier, Thierry Winiarski, Gislain Lipeme-Kouyi, Philippe Polomé, et al.. Contribution of different land use catchments on the microplastic pollution in detention basin sediments. Environmental Pollution, 2024, 348, pp.123882. ⟨10.1016/j.envpol.2024.123882⟩. ⟨hal-04544161⟩
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ref_biblio
Carla Morvan, Sonia Paty. Natural disasters and voter gratitude: What is the role of prevention policies?. Public Choice, In press, ⟨10.1007/s11127-023-01137-x⟩. ⟨hal-04393271⟩
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Lionel Perrier, Frederic Balusson, Magali Morelle, Joël Castelli, Juliette Thariat, et al.. Cost-effectiveness of weekly adaptive radiotherapy versus standard IMRT in head and neck cancer alongside the ARTIX trial. Radiotherapy & Oncology, 2024, Radiotherapy and Oncology : Journal of the European Society For Therapeutic, 193, pp.110116. ⟨10.1016/j.radonc.2024.110116⟩. ⟨hal-04444231⟩
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