Sequential market entries and competition modelling in multi-innovation diffusions

Technological change in the U.S. music industry: Within-product, cross-product and churn effects between competing blockbusters

“…This condition allows the determination of a time-dependent closed-form solution which may be usefully employed in practical applications; see in particular Guseo and Mortarino (2014). Observe that, when δ = γ = 0, the model further reduces to that proposed in Guseo and Mortarino (2012), where the WOM has no specific decomposition between concurrents: both exert the same effect at the category level.…”

“…Although more common in reality, the situation of sequential market entry, also called diachronic competition, has received quite limited attention in the literature. Among the papers dealing with the issue, we recall Krishnan et al (2000), Savin and Terwiesh (2005), Guseo and Mortarino (2010), Guseo and Mortarino (2012), and Guseo and Mortarino (2013), where competition is modeled as a duopoly after a monopolistic period for the first entrant. In particular, the models proposed in Guseo and Mortarino (2012) and Guseo and Mortarino (2014) consider different entry times and changes in first-product parameters due to competition.…”

“…Among the papers dealing with the issue, we recall Krishnan et al (2000), Savin and Terwiesh (2005), Guseo and Mortarino (2010), Guseo and Mortarino (2012), and Guseo and Mortarino (2013), where competition is modeled as a duopoly after a monopolistic period for the first entrant. In particular, the models proposed in Guseo and Mortarino (2012) and Guseo and Mortarino (2014) consider different entry times and changes in first-product parameters due to competition. The models in Guseo and Mortarino (2014), namely standard UCRCD and unrestricted UCRCD, differ from that in Guseo and Mortarino (2012) in allowing a more general structure of WOM effect where the authors assume that the two products share the same WOM since they are so similar as to be perceived as equal by consumers.…”

“…In particular, the models proposed in Guseo and Mortarino (2012) and Guseo and Mortarino (2014) consider different entry times and changes in first-product parameters due to competition. The models in Guseo and Mortarino (2014), namely standard UCRCD and unrestricted UCRCD, differ from that in Guseo and Mortarino (2012) in allowing a more general structure of WOM effect where the authors assume that the two products share the same WOM since they are so similar as to be perceived as equal by consumers. In Guseo and Mortarino (2014), this assumption is relaxed, and each product is influenced by within-product and cross-product word-of-mouth effects.…”

The Importance of Forecasting in the Process of Developing a New Postal Service

“…With balanced models, WoM has a crucial inf luence on both products being accepted without difference, while with non-balanced models interpersonal com mu n icat ion is d iv ided i nto t wo components -communication with clients who have used the first service/product and communication with clients of competitive products. There are several papers on diachronic approach -Krishnan et al (2000) -a balanced model with partial parameter alliteration, Guseo and Mortarino (2012) -a model with alliteration after product introduction, Savin and Terwiesch (2005) -a non-balanced model, and again Guseo and Mortarino (2014) -a generalization of the previous model with parameters which enable continual switching between balanced and non-balanced models.…”