Segmentation — Dividing Markets That Don't Want to Be Divided
The productive tension
Segments as real groupingsandas constructed analytical tools
The synthesis
The segmentation tradition treats segments as real entities — groups of consumers who genuinely differ in their needs, preferences, and behaviours, waiting to be discovered through research and analysis. The Ehrenberg-Bass critique treats segments as largely constructed — statistical artefacts imposed on data that, in reality, shows massive overlap between buyer profiles. Both positions contain truth. Segments are real in the sense that consumers genuinely differ in their needs and occasions; a first-time mortgage buyer and a seasoned property investor have different requirements that demand different offers. But segments are constructed in the sense that the boundaries between them are artificial, the groups are far less internally homogeneous than segmentation frameworks imply, and most brands draw buyers from across the entire market rather than from a single well-defined segment. The evidence-based marketer uses segmentation as a lens for understanding market structure — not as a map of walled-off territories that buyers obligingly inhabit.
Learning objectives
- →Identify and compare the major segmentation bases (demographic, geographic, psychographic, behavioural, needs-based, occasion-based)
- →Explain why behavioural and needs-based segmentation are more predictive than demographics, while demographics remain more actionable
- →Describe the segmentation process from qualitative exploration through quantitative clustering to validation
- →Evaluate when segments are "real" groupings versus statistical artefacts, using the Ehrenberg-Bass evidence on buyer profile overlap
- →Articulate the Both/And of segmentation as useful analytical lens AND recognition that growth comes largely from light buyers outside the "target"
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