Research
Research Interests: Game Theory, Economic Theory, Opinion Dynamics, Networks, Switching Costs.
Below is a list of my projects and the resulting publications. Projects marked with ✍️ include some work in progress. Feel free to contact me if you'd like to know more or cooperate!
A full publication list in chronological order can be found in my CV.
Multi-Receiver Bayesian Perssuasion ✍️
We study the Bayesian persuasion problem with a single sender and multiple receivers, focusing on the network effects that the receivers exhibit. For example, we consider how information spillover between neighbors affects the sender's ability to persuade the population. Of particular interest are "defensive" strategies employed by receivers, which enable them to force the sender to send more informative signals and protect themselves from misinformation and fake news.
Related papers:
- "Bayesian Persuasion in Networks: Divisibility and Network Irrelevance" (with Toygar T. Kerman & Anastas P. Tenev). Submitted.
🗝️Information Spillover, Division, Covering Problem.
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"Persuading Skeptics" (with Toygar T. Kerman & Anastas P. Tenev). Work in progress.
🗝️Information Spillover, Degree Distribution, Voting.
Information Propogation in Networks ✍️
We study the propagation of information (or adoption of new technologies, addictive products, and so forth) through a network, typically starting from an initial set of agents (the seed set) with the goal of reaching the entire network. The questions in this framework primarily concern the properties of the seed set, including finding it efficiently, determining its size, estimating the time required, and measuring the importance of each agent in the process.
Related papers:
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"Addiction to a Network" (with David Gilo & Ariel Porat).Submitted.
🗝️Peer Pressure, Fear of Missing Out (FOMO), Social Media Platforms, Influencers, Rehabilitation, Dynamic Programming.
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"Authority Measure for Opinion Dynamics" (with Igal Milchtaich & Ron Peretz). Submitted.
🗝️Shapley Value, Centrality Measure, Diffusion, Word-of-Mouth, Contagious.
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"Minimal Contagious Sets in Innovation Diffusion Networks" (with Itai Arieli, Galit Ashkenazi-Golan & Ron Peretz).Journal of Economic Theory, 2025.
🗝️Word-of-Mouth, Contagious, Attachment.
Switching Costs and Persistent Actions
We study repeated interactions with long-term binding action. This includes situations where the action can be changed for some fee (switching costs), or can be changed to a particular direction (a bid can be increased but not decreased), or not at all. We characterize how such limitations affect the outcome of the game and compare it to the benchmark with no switching costs.
Related papers:
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"Strategic flip-flopping in political competition" (with Alberto Grillo & Gaëtan Fournier). International Economic Review, 2025.
🗝️Spatial voting, Imperfect information, Re-positioning.
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"Folk theorems in repeated games with switching costs" (with Xavier Venel & Anna Zseleva). Games and Economic Behavior, 2024.
🗝️Stochastic Games, Non-Zero-Sum Games, Feasible Set.
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"The Price of History-Independent Strategies in Games With Inter-Temporal Externalities" (with Xavier Venel & Anna Zseleva). Dynamic Games and Applications, 2024.
🗝️Switching Costs, Repeated Games, Stochastic Games, Zero-Sum Games.
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"I Want to Tell You?" (with Galit Ashkenazi-Golan & Yannick Viossat). Economic Theory, 2023.
🗝️Auctions, Multi-Stage Auctions, BAFO, Information Utilization.
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"The Regularity of the Value Function of Repeated Games with Switching Costs" (with Xavier Venel & Anna Zseleva). Mathematics of Operations Research, 2023.
🗝️Stochastic Games, Zero-Sum Games.
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"The Worst-Case Payoff in Games with Stochastic Revision Opportunities". Annals of Operations Research, 2021.
🗝️Asynchronous Games, Rational Minimax, Worst-Case Payoffs, Commitment, Exogenous Timing.
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"Stochastic Revision Opportunities in Markov Decision Problems" (with Ehud Lehrer). Annals of Operations Research, 2019.
🗝️Stochastic Dominance, Commitment, Exogenous Timing
General Game Theory
Game theory is everything, and everything is game theory. Sometimes, I work on gigs that fall outside the main scope of my research interests. This is the "miscellaneous category" for such projects. I'm always happy to expand my horizons and add new projects to this list.
Related papers:
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"Working with AI: An Analysis for Rational Integration" (with David Lagziel). R&R at GEB
🗝️AI-Enhanced Decisions, Bayesian Learning, Guided Strategies.
