A Measure for Companies' Customer Portfolio Management

Purpose/Contribution: Customer portfolio management (CPM) is one of the key areas of customer-relationship and network management in business markets. However, there is scant research about the implementation of this concept in business. This article contributes to this conceptually rich but empirically nascent field of CPM research by (1) conceptualizing customer portfolio management, (2) forming a measure for it, (3) validating the suggested measure, and (4) suggesting implications for future research and management.

Methodology: A CPM construct is proposed based on the synthesizing of the theory and the findings from a qualitative field study of companies' management practices. The suggested construct is formative and consists of the following four dimensions: analysis efforts, analysis design, responsiveness efforts, and responsiveness design. Hence, this conceptualization takes into account both the strength and style of companies' CPM practices. The measure is validated following Diamantopoulos and Winklhofer's (2001) Diamantopoulos, A. and Winklhofer, H. 2001. Index construction with formative indicators: An alternative to scale development. Journal of Marketing Research, 38(2): 269–277. Crossref], Web of Science ®] , Google Scholar] guidelines for developing formative measures. Together with the content validity established in the conceptual phase of the research, the results from a cross-industry survey of 212 companies give support to the construct validity of the suggested CPM measure. Partial least squares modeling is applied in validating the measure.

Implications: This study gives an extensive, up-to-date review of customer portfolio management and provides measures for future research on companies' CPM practices and performance. Further, the theory and the field study highlighted several central topics that should be addressed in future CPM studies. The resulting managerial implications derive from the discussion on the key aspects of developing CPM practices in business.