Research & Publications Office to host seminar on ‘Model-Based Inference under Misspecification in Large Games and Networks’ on 17 July
The talk will be delivered by Prof. Aniruddha Ghosh, Orfalea College of Business
14 July, 2025, Bengaluru: The Office of Research and Publications (R&P) will host a seminar on, ‘Model-Based Inference under Misspecification in Large Games and Networks’, to be led by Prof. Aniruddha Ghosh, Orfalea College of Business (Economics area), at 2.30 pm on 17th July 2025, at P21.
Abstract: In this talk, Prof. Aniruddha Ghosh will present two frameworks for analyzing equilibrium behavior under misspecification in large games and network environments. The first framework extends the Mas-Colell (1984) equilibrium concept of anonymous interaction in large games to incorporate belief misspecification, using KL divergence minimization within type-specific feasible belief sets. Agents interact anonymously but hold constrained or incorrect beliefs about the distribution of others’ actions. The researchers characterize conditions for existence, nonexistence and comparative statics of misspecified equilibria, and provide examples illustrating how misspecification shapes aggregate outcomes. The second framework poses a distinct misspecification question in network settings, focusing on issues of consensus and convergence. The argumentation provided is an attempt to bridge the literature on networks with that on model-based misspecified learning and inference.
Speaker Profile: Dr. Aniruddha Ghosh is an Assistant Professor at the Department of Economics, Orfalea College of Business at Cal Poly. He received his PhD in Economics from the Johns Hopkins University.
His research interests are in microeconomic and statistical theory with a focus on model misspecification, social learning and decision theory.
Webpage Link: https://orfalea.calpoly.edu/about-us/directory/aniruddha-ghosh/
Research & Publications Office to host seminar on ‘Model-Based Inference under Misspecification in Large Games and Networks’ on 17 July
The talk will be delivered by Prof. Aniruddha Ghosh, Orfalea College of Business
14 July, 2025, Bengaluru: The Office of Research and Publications (R&P) will host a seminar on, ‘Model-Based Inference under Misspecification in Large Games and Networks’, to be led by Prof. Aniruddha Ghosh, Orfalea College of Business (Economics area), at 2.30 pm on 17th July 2025, at P21.
Abstract: In this talk, Prof. Aniruddha Ghosh will present two frameworks for analyzing equilibrium behavior under misspecification in large games and network environments. The first framework extends the Mas-Colell (1984) equilibrium concept of anonymous interaction in large games to incorporate belief misspecification, using KL divergence minimization within type-specific feasible belief sets. Agents interact anonymously but hold constrained or incorrect beliefs about the distribution of others’ actions. The researchers characterize conditions for existence, nonexistence and comparative statics of misspecified equilibria, and provide examples illustrating how misspecification shapes aggregate outcomes. The second framework poses a distinct misspecification question in network settings, focusing on issues of consensus and convergence. The argumentation provided is an attempt to bridge the literature on networks with that on model-based misspecified learning and inference.
Speaker Profile: Dr. Aniruddha Ghosh is an Assistant Professor at the Department of Economics, Orfalea College of Business at Cal Poly. He received his PhD in Economics from the Johns Hopkins University.
His research interests are in microeconomic and statistical theory with a focus on model misspecification, social learning and decision theory.
Webpage Link: https://orfalea.calpoly.edu/about-us/directory/aniruddha-ghosh/