Published online by Cambridge University Press: 01 January 2025
This manuscript introduces a new Bayesian finite mixture methodology for the joint clustering of row and column stimuli/objects associated with two-mode asymmetric proximity, dominance, or profile data. That is, common clusters are derived which partition both the row and column stimuli/objects simultaneously into the same derived set of clusters. In this manner, interrelationships between both sets of entities (rows and columns) are easily ascertained. We describe the technical details of the proposed two-mode clustering methodology including its Bayesian mixture formulation and a Bayes factor heuristic for model selection. We present a modest Monte Carlo analysis to investigate the performance of the proposed Bayesian two-mode clustering procedure with respect to synthetically created data whose structure and parameters are known. Next, a consumer psychology application is provided examining physician pharmaceutical prescription behavior for various brands of prescription drugs in the neuroscience health market. We conclude by discussing several fertile areas for future research.
Wayne S. DeSarbo is the Smeal Distinguished Professor of Marketing at the Smeal School of Business at Pennsylvania State University in University Park, PA. Duncan K.H. Fong is Professor of Marketing and Professor of Statistics at the Smeal School of Business at Pennsylvania State University in University Park, PA. John Liechty is an Assistant Professor of Marketing and Assistant Professor of Statistics at the Smeal School of Business at Pennsylvania State University in University Park, PA. M. Kim Saxton is Consultant of Marketing Research at the Eli Lilly and Co. in Indianapolis, IN.
The authors wish to recognize and thank several anonymous referees, the Associate Editor, and the Editor for their insightful and constructive comments.