2 papers
q-fin.MF2026
When cooperation is beneficial to all agents
Alessandro Doldi, Marco Frittelli, Marco Maggis
Within a general semimartingale framework, we study the relationship between collective market efficiency and individual rationality. We derive a necessary and sufficient condition…
q-fin.MF2024
Collective Arbitrage and the Value of Cooperation
Francesca Biagini, Alessandro Doldi, Jean-Pierre Fouque +2
We introduce the notions of Collective Arbitrage and of Collective Super-replication in a discrete-time setting where agents are investing in their markets and are allowed to coope…