Thesis or dissertation
Date of this Version
This study considers heterogeneous effects of reviews and social interactions on diffusion or contagion of new products in a networked setting, using a sample of interconnected public user profiles from the Steam Community. Ownership and reviews of two cult hit independent games – The Binding of Isaac: Rebirth, and To the Moon – are analyzed over a period of four years. This data was fit with a Hawkes Process Hazard Regression Model with exponential decay kernels for each game, yielding estimates of scale and duration of incremental heterogeneous actions within the network. This analysis finds strong, short term, additive, and marginally decreasing, social contagion effects from other users buying games, with much smaller, but also far more durable and highly significant, effects from review posting behavior in the network, independent of review quality. This seems to suggest that review influence, while still distinguishable from network homophily, is unlikely to lead to cascade effects.
Information, Contagion, Cascades, Diffusion, Hawkes
Applied Statistics Commons, Business Analytics Commons, Business Intelligence Commons, Dynamic Systems Commons, E-Commerce Commons, Marketing Commons, Statistical Models Commons, Survival Analysis Commons
Date Posted:08 June 2018