activity
20232026
most citedBreaking the Envy Cycle: Best-of-Both-Worlds Guarantees for Subadditive Valuations

7 citations · 9 across the 10 of their papers we have counts for

collaborators
Showing cs.GTShow all

12 papers · 1 filter

cs.GT2026

Epistemic Pairwise Maximin Share

Michal Feldman, Amos Fiat, Yael Nissan +1

We introduce epistemic pairwise maximin share (EPMMS), a new fairness notion for fair division of indivisible goods. Two fundamental notions in this setting are envy-freeness up to…

cs.GT2026

Anonymous Contracts

Johannes Brustle, Paul Duetting, Stefano Leonardi +2

We study a multi-agent contracting problem where agents exert costly effort to achieve individually observable binary outcomes. While the principal can theoretically extract the fu…

cs.GT2026

Equal-Pay Contracts

Michal Feldman, Yoav Gal-Tzur, Tomasz Ponitka +1

We study multi-agent contract design, where a principal incentivizes a team of agents to take costly actions that jointly determine the project success via a combinatorial reward f…

cs.GT2025

One Action Too Many: Inapproximability of Budgeted Combinatorial Contracts

Michal Feldman, Yoav Gal-Tzur, Tomasz Ponitka +1

We study multi-agent contract design with combinatorial actions, under budget constraints, and for a broad class of objective functions, including profit (principal's utility), rew…

cs.GT2025

Online Fair Division With Subsidy: When Do Envy-Free Allocations Exist, and at What Cost?

Pooja Kulkarni, Ruta Mehta, Vishnu V. Narayan +1

We study the problem of fairly allocating indivisible items arriving online, among (offline) agents. Although envy-freeness has emerged as the archetypal fairness notion, e…

cs.GT2025

Probing EFX via PMMS: (Non-)Existence Results in Discrete Fair Division

Jarosław Byrka, Franciszek Malinka, Tomasz Ponitka

We study the fair division of indivisible items and provide new insights into the EFX problem, which is widely regarded as the central open question in fair division, and the PMMS…

cs.GT2025

The Panel Complexity of Sortition: Is 12 Angry Men Enough?

Johannes Brustle, Simone Fioravanti, Tomasz Ponitka +1

Sortition is the practice of delegating public decision-making to randomly selected panels. Recently, it has gained momentum worldwide through its use in citizens' assemblies, spar…

cs.GT2025

Budget-Feasible Contracts

Michal Feldman, Yoav Gal-Tzur, Tomasz Ponitka +1

The problem of computing near-optimal contracts in combinatorial settings has recently attracted significant interest in the computer science community. Previous work has provided…

cs.GT2025

The Pseudo-Dimension of Contracts

Paul Duetting, Michal Feldman, Tomasz Ponitka +1

Algorithmic contract design studies scenarios where a principal incentivizes an agent to exert effort on her behalf. In this work, we focus on settings where the agent's type is dr…

cs.GT2024

Proportionally Fair Makespan Approximation

Michal Feldman, Jugal Garg, Vishnu V. Narayan +1

We study fair mechanisms for the classic job scheduling problem on unrelated machines with the objective of minimizing the makespan. This problem is equivalent to minimizing the eg…

cs.GT2023★ 7 cited

Breaking the Envy Cycle: Best-of-Both-Worlds Guarantees for Subadditive Valuations

Michal Feldman, Simon Mauras, Vishnu V. Narayan +1

We study best-of-both-worlds guarantees for the fair division of indivisible items among agents with subadditive valuations. Our main result establishes the existence of a random a…

cs.GT2023★ 2 cited

On Optimal Tradeoffs between EFX and Nash Welfare

Michal Feldman, Simon Mauras, Tomasz Ponitka

A major problem in fair division is how to allocate a set of indivisible resources among agents fairly and efficiently. The goal of this work is to characterize the tradeoffs betwe…