Raphaël Krikorian, AGM, Université de Cergy-Pontoise
Imen Ghatassi, MCF, CEPN, Université Paris 13
Marcus Pivato, PR, THEMA, Université de Cergy-Pontoise
My research focuses on individual and collective decision-making and social welfare. Here are some of my recent projects:
- Social choice with uncertainty and/or intertemporal aspects (in the tradition of Harsanyi’s Social Aggregation Theorem).
- Holistic approaches to judgement aggregation (which avoid impossibility theorems by relaxing the independence condition).
- The use of ordered algebraic structures and methods from nonstandard analysis to represent lexicographical utility functions and/or probabilities (which arise naturally in certain problems in game theory, uncertainty, and infinite-horizon intertemporal choice).
- Epistemic social choice theory with interacting voters; deliberative democracy.
- Foundational problems in social welfare theory, such as measures of well-being and the nature of interpersonal comparisons.
- Multiutility representations of incomplete preference orders.
- Statistical approximations of utilitarian social welfare in large populations.