Resumo

VILLAMIL, Jaime  e  PECHA, Arcenio. LA PARADOJA LIBERAL CON RELACIONES DE PREFERENCIA BORROSAS. Cuad. Econ. [online]. 2004, vol.23, n.40, pp.55-77. ISSN 0121-4772.

Several authors have studied Arrow’s Impossibility Theory [1951] with fuzzy preferences; however, only a few of them have studied Sen’s Liberal Paretian Impossibility [1970a] with unclear preferences. This article traces developments which have been made from the Liberal Paradox with fuzzy preferences after Subramanian [1987] and outlines possible way forward for understanding Lotteries in Social Choice also with unclear preferences.

Palavras-chave : fuzzy preferences; decision-making in conditions of uncertainty; social choice; liberalism.

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