Abstract
By considering supreme-utilities among fuzzy level (decision) vectors, we introduce an index and its efficient extension to investigate power mensuration mechanism in the framework of multicriteria fuzzy transferable-utility (TU) games. We also adopt reduced games and related consistency to analyze the rationality for these two indexes. Further, alternative formulation for the efficient index is also proposed by applying excess function. Based on reduced game and excess function, we introduce different dynamic processes for the efficient index.
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