[Séminaire Caen] Anonymous, Neutral and Tops Only Social Choice

Abstract:
We define “a selection” as a mapping that assigns to each multi set X of natural numbers (including zero) a set of natural numbers that consists of elements of X. We propose a method the use a selection to induce a social choice rule (SCR). We show that every SCR induced by a selection as such is tops-only. On the other hand, not every tops-only SCR can be induced by a selection. In fact, a SCR f is induced by selection if and only if f is tops-only, anonymous and neutral. We provide additional characterizations for SCRs that are furthermore Pareto efficient and monotonic by imposing additional structures on selections.
Co-écrit avec Ali Ozkes, Skema Business School