The "doctrinal paradox", also called "discursive dilemma", shows that the aggregation of judgements held by different individuals is problematic and can lead to group-level inconsistencies, although each individual is consistent. This aggregation problem has intuitive similarities with the...

In this article we propose a new methodology for computing the aggregate productivity of an industry, its variations and decompositions of the latter into changes of individual productivities (within effect) and changes in industry composition (between effect). Current aggregate measures rely on...