This special section is the result of an effort by several scholars to move marketing academic research toward greater practical relevance. This initiative, called Theory Practice in Marketing (TPM), started with a conference at Columbia Business School in 2011, and the five papers published in this special section were presented at the second TPM conference held at Harvard Business School in 2012.
We propose an approach for using individual-level data on social interactions (e.g., number of recommendations received by consumers, number of recommendations given by adopters, number of social ties) to improve the aggregate penetration forecasts made by extant diffusion models. We capture social interactions through an individual-level hazard rate in such a way that the resulting aggregate penetration process is available in closed form and nests extant diffusion models.
The case describes the launch of a social media platform by the largest container shipping company in the world. Students will have the opportunity to thoroughly evaluate the campaign, which by observable criteria, has done extremely well. The case provides details on the various platforms used, the nature of content provided on each, and the associated budgets (including headcount). The budget figures are particularly interesting because they permit a rich discussion around the social media program's ROI.
Substitution decisions have been examined from a variety of perspectives. The economics literature measures cross-price elasticity, operations research models optimal assortments, the psychology literature studies goals in conflict, and marketing research has examined substitution-in-use, brand switching, stockouts, and self-control. We integrate these perspectives into a common framework for understanding consumer substitution decisions; their specific drivers (availability of new alternatives, internal vs.