Ata Atay
@ataatay.bsky.social
Serra Húnter Associate Professor @ University of Barcelona. Mostly market design, network formation, and operations research. Love to ride his Orbea and watch cyclists in the mud (veldrit is de koning).
https://sites.google.com/site/ataatay
https://sites.google.com/site/ataatay
We were delighted to host @chiaraina.bsky.social at our Game Theory Research Group Seminar Series ( @ubgametheory.bsky.social).
October 3, 2025 at 6:43 AM
We were delighted to host @chiaraina.bsky.social at our Game Theory Research Group Seminar Series ( @ubgametheory.bsky.social).
🚨 New paper 🚨
In many OR problems (queueing, mcst, ...), it is not clear how to build a TU game for sharing costs/benefits. We take a more general view. It allows us to relate opt/pes approaches to core/anti-core without studying each problem separately.
Open access: tinyurl.com/ATEJOR
In many OR problems (queueing, mcst, ...), it is not clear how to build a TU game for sharing costs/benefits. We take a more general view. It allows us to relate opt/pes approaches to core/anti-core without studying each problem separately.
Open access: tinyurl.com/ATEJOR
September 18, 2025 at 7:30 AM
🚨 New paper 🚨
In many OR problems (queueing, mcst, ...), it is not clear how to build a TU game for sharing costs/benefits. We take a more general view. It allows us to relate opt/pes approaches to core/anti-core without studying each problem separately.
Open access: tinyurl.com/ATEJOR
In many OR problems (queueing, mcst, ...), it is not clear how to build a TU game for sharing costs/benefits. We take a more general view. It allows us to relate opt/pes approaches to core/anti-core without studying each problem separately.
Open access: tinyurl.com/ATEJOR
What a beautiful and brutal day on the Paterberg. The last time we were there with @inanozdemir.bsky.social in 2022, VdP did not let Pogacar get away. Today, we watched Pogacar go up solo... a whole different level!
April 6, 2025 at 8:19 PM
What a beautiful and brutal day on the Paterberg. The last time we were there with @inanozdemir.bsky.social in 2022, VdP did not let Pogacar get away. Today, we watched Pogacar go up solo... a whole different level!
Menu del dia: BCN-Alt de Begues-Muntanyes d'Ordal-Collserola-BCN loop. Lots of climbing and 5°C going downhill. Still a great loop 😍
December 15, 2024 at 1:38 PM
Menu del dia: BCN-Alt de Begues-Muntanyes d'Ordal-Collserola-BCN loop. Lots of climbing and 5°C going downhill. Still a great loop 😍
Optimist: the cup is half full
Pessimist: the cup is half empty
C. Trudeau & I: is about who drank first and whether they made the cup bigger or smaller for the others. Here is an umbrella model — no need to check for each application (mcst, queueing, etc.)
Updated WP: arxiv.org/abs/2403.014...
Pessimist: the cup is half empty
C. Trudeau & I: is about who drank first and whether they made the cup bigger or smaller for the others. Here is an umbrella model — no need to check for each application (mcst, queueing, etc.)
Updated WP: arxiv.org/abs/2403.014...
December 12, 2024 at 9:52 AM
Optimist: the cup is half full
Pessimist: the cup is half empty
C. Trudeau & I: is about who drank first and whether they made the cup bigger or smaller for the others. Here is an umbrella model — no need to check for each application (mcst, queueing, etc.)
Updated WP: arxiv.org/abs/2403.014...
Pessimist: the cup is half empty
C. Trudeau & I: is about who drank first and whether they made the cup bigger or smaller for the others. Here is an umbrella model — no need to check for each application (mcst, queueing, etc.)
Updated WP: arxiv.org/abs/2403.014...
Another weekend morning done right. A short ride before studying some Catalan.
December 7, 2024 at 12:02 PM
Another weekend morning done right. A short ride before studying some Catalan.
Sunday morning done right. This climb is from Dosrius to Cardedeu which is passed in la Volta time to time. Barcelona is a great city for game theory and cycling.
December 1, 2024 at 12:48 PM
Sunday morning done right. This climb is from Dosrius to Cardedeu which is passed in la Volta time to time. Barcelona is a great city for game theory and cycling.
🚨New paper alert🚨
When agents are farsighted, the singleton set of TTC matching turns out to be farsightedly stable on top of Pareto efficiency. It is enough for agents to anticipate just three steps ahead. Meanwhile, DA and also Boston may not belong to any farsighted stable set. tinyurl.com/GEBFSS
When agents are farsighted, the singleton set of TTC matching turns out to be farsightedly stable on top of Pareto efficiency. It is enough for agents to anticipate just three steps ahead. Meanwhile, DA and also Boston may not belong to any farsighted stable set. tinyurl.com/GEBFSS
November 28, 2024 at 11:12 PM
🚨New paper alert🚨
When agents are farsighted, the singleton set of TTC matching turns out to be farsightedly stable on top of Pareto efficiency. It is enough for agents to anticipate just three steps ahead. Meanwhile, DA and also Boston may not belong to any farsighted stable set. tinyurl.com/GEBFSS
When agents are farsighted, the singleton set of TTC matching turns out to be farsightedly stable on top of Pareto efficiency. It is enough for agents to anticipate just three steps ahead. Meanwhile, DA and also Boston may not belong to any farsighted stable set. tinyurl.com/GEBFSS
