Biau, Gérard; Biau, Olivier; Rouvière, Laurent - In: Journal of Business Cycle Measurement and Analysis 2007 (2007) 3, pp. 317-331
A large majority of summary indicators derived from the individual responses to qualitative Business Tendency Surveys (which are mostly three-modality questions) result from standard aggregation and quantification methods. This is typically the case for the indicators called balances of opinion,...