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285 results on '"Cato, Susumu"'

32. Revisiting variable-value population principles.

Author

Bossert, Walter, Cato, Susumu, and Kamaga, Kohei

Abstract

We examine a general class of variable-value population principles. Our particular focus is on the extent to which such principles can avoid the repugnant and sadistic conclusions. We show that if a mild limit property is imposed, avoidance of the repugnant conclusion implies the sadistic conclusion. This result generalizes earlier observations by showing that they apply to a substantially larger class of principles. Our second theorem states that, under the limit property, the axiom of mere addition also conflicts with avoidance of the repugnant conclusion. This result is a consequence of a similar observation that appears in the earlier literature. [ABSTRACT FROM AUTHOR]

Published
2023
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45. Approval voting versus proportional threshold methods: so far and yet so near

Author

Cato, Susumu, Gonzalez, Stéphane, Rémila, Eric, Solal, Philippe, The University of Tokyo (UTokyo), Groupe d'Analyse et de Théorie Economique Lyon - Saint-Etienne (GATE Lyon Saint-Étienne), École normale supérieure de Lyon (ENS de Lyon)-Université Lumière - Lyon 2 (UL2)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
evaluation, consistency, approval voting method, certification method, proportional threshold method, monotonicity, [SHS.ECO]Humanities and Social Sciences/Economics and Finance, [SHS]Humanities and Social Sciences
Abstract

This paper provides the first axiomatic characterization of a class of certification methods, dubbed proportional threshold methods, that builds on consistency properties across populations and profiles of binary opinions. We then compare proportional threshold methods with the approval voting method. We formally outline the similarities and differences of these two collective decision processes and provide an axiomatic characterization of the approval voting method that, perhaps surprisingly, is closely related to the one of the proportional threshold methods.

Published
2022

46. National vs. International Interests in the Allocation of COVID-19 Vaccinations

Author

CATO, Susumu, Iida, Takashi, ISHIDA, Kenji, ITO, Asei, KATSUMATA, Hiroto, Kawaguchi, Hirofumi, McElwain, Kenneth, and SHOJI, Masahiro

Subjects
Sociology, Economics, Political Science, FOS: Political science, COVID, Japan, Social and Behavioral Sciences, FOS: Sociology
Abstract

Should the maximization of COVID-19 vaccination rates in one's own country be balanced against the needs of other, less-vaccinated nations? Even in highly-vaccinated countries, concerns about weakening immunity have prompted debates about procuring additional vaccines for “booster shots”. However, such actions can leave the populations of less-vaccinated countries exposed to higher risks of infection. In this project, we design a survey experiment to test how the framing of tradeoffs in vaccine allocations can change public sentiment towards government policies.

Published
2022
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