demonstrate practical applicability the mode of substitutions considered here need to be related to observed adoption characteristics (not discussed in this paper). Consequently, a System Dynamics model built on the regression functions identified in this study is proposed (although not discussed here) in order to calibrate these extracted technology profiles and mode predictions to empirical adoption data. This aims to more thoroughly explore the causal mechanisms relating early indicators of technological substitution to the eventual adoption patterns observed and provide a means of applying greater reasoning to the relationships identified here.