Search Results for author: Ian Ball

Found 13 papers, 0 papers with code

Simple Proofs of the Variational and Multiple Priors Representations

no code implementations11 Dec 2023 Ian Ball

This note gives simpler proofs of the variational and multiple priors representations in Maccheroni et al. (2006) and Gilboa and Schmeidler (1989).

Quota Mechanisms: Robustness and Finite-Sample Performance

no code implementations14 Sep 2023 Ian Ball, Deniz Kattwinkel

We establish a tight bound on the ex-post decision error under quota mechanisms, for a finite number of linked problems.

Bauer's Maximum Principle for Quasiconvex Functions

no code implementations8 May 2023 Ian Ball

This note shows that in Bauer's maximum principle, the assumed convexity of the objective function can be relaxed to quasiconvexity.

Should the Timing of Inspections be Predictable?

no code implementations3 Apr 2023 Ian Ball, Jan Knoepfle

A principal hires an agent to work on a long-term project that culminates in a breakthrough or a breakdown.

Dynamic Information Provision: Rewarding the Past and Guiding the Future

no code implementations16 Mar 2023 Ian Ball

I solve for the sender's optimal policy in closed form: the sender reports the value of the state with a delay that shrinks over time and eventually vanishes.

A Unified Theorem of the Alternative

no code implementations13 Mar 2023 Ian Ball

This note presents a unified theorem of the alternative that explicitly allows for any combination of equality, componentwise inequality, weak dominance, strict dominance, and nonnegativity relations.

Content Filtering with Inattentive Information Consumers

no code implementations27 May 2022 Ian Ball, James Bono, Justin Grana, Nicole Immorlica, Brendan Lucier, Aleksandrs Slivkins

We develop a model of content filtering as a game between the filter and the content consumer, where the latter incurs information costs for examining the content.

Misinformation Recommendation Systems

Comment on Jackson and Sonnenschein (2007) "Overcoming Incentive Constraints by Linking Decisions"

no code implementations6 May 2022 Ian Ball, Matt O. Jackson, Deniz Kattwinkel

The proof of their main theorem uses a different permutation-based definition, implicitly claiming that the permutation-version implies the bound-based version.

Scoring Strategic Agents

no code implementations4 Sep 2019 Ian Ball

This rule underweights some features to deter sender distortion, and overweights other features so that the score is correct on average.

Probabilistic Verification in Mechanism Design

no code implementations15 Aug 2019 Ian Ball, Deniz Kattwinkel

The agent's true type determines the probability with which he can pass each test.

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