См., например: Wendy W. Moe, Peter S. Fader. Modeling Hedonic Portfolio Products: A Joint Segmentation Analysis of Music CD Sales // Journal of Marketing Research, 38, № 3, 2001, p. 376–383; Alan L. Montgomery, Wendy W. Moe. Should Music Labels Pay for Radio Airplay? Investigating the Relationship Between Album Sales and Radio Airplay // Working Paper, August, 2002.