Intrinsic robustness of the price of anarchy

T Roughgarden - Journal of the ACM (JACM), 2015 - dl.acm.org
The price of anarchy, defined as the ratio of the worst-case objective function value of a
Nash equilibrium of a game and that of an optimal outcome, quantifies the inefficiency of …

Composable and efficient mechanisms

V Syrgkanis, E Tardos - Proceedings of the forty-fifth annual ACM …, 2013 - dl.acm.org
We initiate the study of efficient mechanism design with guaranteed good properties even
when players participate in multiple mechanisms simultaneously or sequentially. We define …

On the Interplay between Social Welfare and Tractability of Equilibria

I Anagnostides, T Sandholm - Advances in Neural …, 2024 - proceedings.neurips.cc
Computational tractability and social welfare (aka. efficiency) of equilibria are two
fundamental but in general orthogonal considerations in algorithmic game theory …

Optimistic policy gradient in multi-player markov games with a single controller: Convergence beyond the minty property

I Anagnostides, I Panageas, G Farina… - Proceedings of the AAAI …, 2024 - ojs.aaai.org
Policy gradient methods enjoy strong practical performance in numerous tasks in
reinforcement learning. Their theoretical understanding in multiagent settings, however …

The price of anarchy in games of incomplete information

T Roughgarden - Proceedings of the 13th ACM Conference on Electronic …, 2012 - dl.acm.org
We define smooth games of incomplete information. We prove an" extension theorem" for
such games: price of anarchy bounds for pure Nash equilibria for all induced full-information …

Bounding the inefficiency of outcomes in generalized second price auctions

I Caragiannis, C Kaklamanis, P Kanellopoulos… - Journal of Economic …, 2015 - Elsevier
Abstract The Generalized Second Price (GSP) auction is the primary auction used for
monetizing the use of the Internet. It is well-known that truthtelling is not a dominant strategy …

Utility design for distributed resource allocation—part i: Characterizing and optimizing the exact price of anarchy

D Paccagnan, R Chandan… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
Game theory has emerged as a fruitful paradigm for the design of networked multiagent
systems. A fundamental component of this approach is the design of agents' utility functions …

Altruism and its impact on the price of anarchy

PA Chen, BD Keijzer, D Kempe, G Schäfer - ACM Transactions on …, 2014 - dl.acm.org
We study the inefficiency of equilibria for congestion games when players are (partially)
altruistic. We model altruistic behavior by assuming that player i's perceived cost is a convex …

When smoothness is not enough: Toward exact quantification and optimization of the price-of-anarchy

R Chandan, D Paccagnan… - 2019 IEEE 58th …, 2019 - ieeexplore.ieee.org
Today's multiagent systems have grown too complex to rely on centralized controllers,
prompting increasing interest in the design of distributed algorithms. In this respect, game …

The price of anarchy in games of incomplete information

T Roughgarden - ACM Transactions on Economics and Computation …, 2015 - dl.acm.org
We define smooth games of incomplete information. We prove an''extension theorem” for
such games: price of anarchy bounds for pure Nash equilibria for all induced full-information …