6 papers
The Paradox of Strategic Altruism
Foivos Savva, Michele Lombardi, Ritesh Jain
Can altruism serve as the behavioral foundation for efficient institutional design? We study full implementation in Berge equilibrium, the solution concept that formalizes strategi…
Revealed Preference Analysis of Shapley-Scarf Housing Markets
Umutcan Salman, Michele Lombardi, Francesco Ciardiello +1
We ask what the reallocation of indivisible objects reveals about the market that produced it. A central authority assigns the objects, after which recipients exchange them among t…
Computational Asymmetries in Robust Classification
Samuele Marro, Michele Lombardi
In the context of adversarial robustness, we make three strongly related contributions. First, we prove that while attacking ReLU classifiers is -hard, ensuring their…
Generalized Disparate Impact for Configurable Fairness Solutions in ML
Luca Giuliani, Eleonora Misino, Michele Lombardi
We make two contributions in the field of AI fairness over continuous protected attributes. First, we show that the Hirschfeld-Gebelein-Renyi (HGR) indicator (the only one currentl…
An Implementation Approach to Rotation Programs
Ville Korpela, Michele Lombardi, Riccardo D. Saulle
We study rotation programs within the standard implementation frame-work under complete information. A rotation program is a myopic stableset whose states are arranged circularly,…
On Trade in Bilateral Oligopolies with Altruistic and Spiteful Agents
Michele Lombardi, Simone Tonin
This paper studies the effects of altruism and spitefulness in a two-sided market in which agents behave strategically and trade according to the Shapley-Shubik mechanism. By assum…