5 papers
Collective decisions under uncertainty: efficiency, ex-ante fairness, and normalization
Leo Kurata, Kensei Nakamura
This paper studies preference aggregation under uncertainty in the multi-profile framework and characterizes a new class of aggregation rules that address classical concerns about…
Condorcet-loser dominance among scoring rules
Ryoga Doi, Kensei Nakamura
This paper studies a dominance relation among scoring rules with respect to avoiding the selection of the Condorcet loser. In a voting model with three or more alternatives, we say…
Agreement with reservation of judgment under risk
Leo Kurata, Kensei Nakamura
This paper studies preference aggregation under risk. In our model, each agent has an incomplete preference relation represented by a set of expected utility functions. The classic…
Reservation of Judgment and Robust Collective Decisions
Leo Kurata, Kensei Nakamura
This paper studies preference aggregation under ambiguity when agents have incomplete preference relations due to imprecise beliefs. We introduce the "dual" of the Pareto principle…
Social Choice Rules with Responsibility for Individual Skills
Kensei Nakamura
This paper examines normatively acceptable criteria for evaluating social states when individuals are responsible for their skills or productivity and these factors should be accou…