Simplicity, Visibility, and Evidence: The Diffusion of Net Promoter Score as a Managerial Innovation
Examined how Net Promoter Score (NPS) became a dominant business metric and what its rapid diffusion means for managers designing customer-experience systems, incentives, and performance dashboards. The project highlights practical risks—such as gaming, weak validity, and overreliance on a single score—and offers insight into how firms can evaluate popular management tools more critically before scaling them.
Author: Patrick Diogenia
Abstract: This paper examines the diffusion of Net Promoter Score as a managerial innovation. Drawing on Rogers’s diffusion of innovations theory, organizational diffusion research, institutional theory, and management-fashion scholarship, it argues that NPS spread rapidly not because its evidentiary foundations were uniquely strong, but because it was simple, visible, portable, and supported by a powerful technology cluster of consulting services, benchmarking systems, dashboards, training, books, and professional networks. The paper traces NPS from its origins in Reichheld’s “one number” formulation through its adoption across private firms, healthcare, higher education, public administration, and employee-experience measurement. It also evaluates scholarly critiques of NPS validity, response bias, scoring logic, and incentive effects. The paper contributes to diffusion and management-fashion scholarship by showing how a contested managerial metric can become institutionally durable when it is simple, observable, benchmarkable, and supported by a reinforcing technology cluster.
Keywords: Net Promoter Score; diffusion of innovations; management fashion; customer experience; organizational change; performance metrics; employee Net Promoter Score
Suggested citation: Diogenia, P.T. (2026). The Diffusion of a Contested Metric: Net Promoter Score as a Managerial Innovation (Working Paper Version 1.0). Patrick Diogenia. https://www.patrickdiogenia.com/projects/the-diffusion-of-net-promoter-score/
Guide for Managers & Other Practitioners
Version history
Version 1.0 — May 2026 — Initial public working-paper release.
