См., например: Sudip Bhattacharjee, Ram D. Gopal, Kaveepan Lertwachara, James R. Marsden. Stochastic Dynamics of Music Album Lifecycles: An Analysis of the New Market Landscape // International Journal of Human-Computer Studies, 65, № 1, 2007, p. 85–93; Sudip Bhattacharjee, Ram D. Gopal, Kaveepan Lertwachara, James R. Marsden, Rahul Telang. The Effect of Digital Sharing Technologies on Music Markets: A Survival Analysis of Albums on Ranking Charts // Management Science, 53, № 9, 2007, p. 1359–1374.