Search Results for author: Omer Tamuz

Found 11 papers, 0 papers with code

Decomposable Stochastic Choice

no code implementations8 Dec 2023 Fedor Sandomirskiy, Omer Tamuz

Each decision is modeled as a menu of actions with outcomes, and a stochastic choice rule assigns probabilities to actions based on the outcome profile.

The Hazards and Benefits of Condescension in Social Learning

no code implementations26 Jan 2023 Itai Arieli, Yakov Babichenko, Stephan Müller, Farzad Pourbabaee, Omer Tamuz

In a misspecified social learning setting, agents are condescending if they perceive their peers as having private information that is of lower quality than it is in reality.

Private Private Information

no code implementations29 Dec 2021 Kevin He, Fedor Sandomirskiy, Omer Tamuz

A private private information structure delivers information about an unknown state while preserving privacy: An agent's signal contains information about the state but remains independent of others' sensitive or private information.

Fairness Recommendation Systems

Learning in Repeated Interactions on Networks

no code implementations28 Dec 2021 Wanying Huang, Philipp Strack, Omer Tamuz

We study how long-lived, rational agents learn in a social network.

Taxes and Market Power: A Principal Components Approach

no code implementations15 Dec 2021 Andrea Galeotti, Benjamin Golub, Sanjeev Goyal, Eduard Talamàs, Omer Tamuz

The Pigouvian leverage of the system -- the gain in consumer surplus achievable by an optimal tax scheme -- depends only on the dispersion of the eigenvalues of the matrix of strategic interactions.

Information Cascades and Social Learning

no code implementations23 May 2021 Sushil Bikhchandani, David Hirshleifer, Omer Tamuz, Ivo Welch

We also highlight open questions and promising directions for further theoretical and empirical exploration.

Monotone additive statistics

no code implementations1 Feb 2021 Xiaosheng Mu, Luciano Pomatto, Philipp Strack, Omer Tamuz

The expectation is an example of a descriptive statistic that is monotone with respect to stochastic dominance, and additive for sums of independent random variables.

Decision Making Descriptive

Background risk and small-stakes risk aversion

no code implementations15 Oct 2020 Xiaosheng Mu, Luciano Pomatto, Philipp Strack, Omer Tamuz

We show that under plausible levels of background risk, no theory of choice under risk -- such as expected utility theory, prospect theory, or rank dependent utility -- can simultaneously satisfy the following three economic postulates: (i) Decision makers are risk-averse over small gambles, (ii) they respect stochastic dominance, and (iii) they account for background risk.

Feasible Joint Posterior Beliefs

no code implementations26 Feb 2020 Itai Arieli, Yakov Babichenko, Fedor Sandomirskiy, Omer Tamuz

We study the set of possible joint posterior belief distributions of a group of agents who share a common prior regarding a binary state, and who observe some information structure.

The Cost of Information: The Case of Constant Marginal Costs

no code implementations11 Dec 2018 Luciano Pomatto, Philipp Strack, Omer Tamuz

We develop an axiomatic theory of information acquisition that captures the idea of constant marginal costs in information production: the cost of generating two independent signals is the sum of their costs, and generating a signal with probability half costs half its original cost.

Efficient Bayesian Learning in Social Networks with Gaussian Estimators

no code implementations3 Feb 2010 Elchanan Mossel, Noah Olsman, Omer Tamuz

Finally, we show that on trees and on distance transitive-graphs the process converges after $D$ steps, and that it preserves privacy, so that agents learn very little about the private signal of most other agents, despite the efficient aggregation of information.

Cannot find the paper you are looking for? You can Submit a new open access paper.