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Commensurability in economics arises whenever there is a common measure through which the value of two entities can be compared. Commensurability has two versions: * Strong commensurability arises when it is possible to give cardinal values to entities as a consequence of utilising a given property measure entities. Thus we can say "This is two and a half times more valuable than that." This implies value monism. * Weak commensurability arises when its only possible to apply ordinal values to entities as a consequence of utilising a given property to rank entities. i.e. it is sufficient to say "This is more valuable than that." This is consistent with value-pluralism.〔 While weak commensurability is a form of strong comparability, it is distinct from weak comparability, where the fact that a comparison is valid in one context does not imply that it is so in all contexts. Also issues of comparability are different from indeterminacy: it may not be possible in certain circumstances to make a measurement, even though if such data was available it would be valid to compare measurements.〔 Commensurability is a key factor in the Socialist calculation debate. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Commensurability (economics)」の詳細全文を読む スポンサード リンク
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