Summary
Under various conditions concerning the cardinal and comparable nature of individual preferences there exist classes of nondictatorial Arrow-type social choice rules (SCR) (Sen (1970). Roberts (1980a, b). d’Aspremont (1983). Yanovskaya (1988, 1989)). However in all previous studies scales of individual welfares measurement have been assumed to be of the same type for the entire society.
This paper is aimed to characterize Arrow-type SCR when individual preferences in different disjoint subgroups of individuals are measured in different scales. As for the relations between subgroups of individuals we consider both dependent and independent scales for all pairs of individuals from different subgroups. Various combinations of ordinal and interval scales are studied. For the case of independent between subgroups scales it is shown that for every combination of scales there exists a decisive coalition equal to one of the subgroups and the SCR is fully determined in accordance with the scales type proper to this subgroup.
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References
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© 1996 Springer-Verlag Berlin Heidelberg
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Khmelnitskaya, A.B. (1996). Social Choice Problems with Different Scales of Individual Welfares Measurement for Different Subgroups of Individuals. In: Kleinschmidt, P., Bachem, A., Derigs, U., Fischer, D., Leopold-Wildburger, U., Möhring, R. (eds) Operations Research Proceedings 1995. Operations Research Proceedings, vol 1995. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-80117-4_44
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DOI: https://doi.org/10.1007/978-3-642-80117-4_44
Publisher Name: Springer, Berlin, Heidelberg
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