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Shedding light on causation between ISO 9001 and improved business performance

Gavin P.M. Dick (Kent Business School, University of Kent, Canterbury, UK)
Iñaki Heras (The Basque Country University, San Sebastian, Spain)
Martí Casadesús (University of Girona, Girona, Spain)

International Journal of Operations & Production Management

ISSN: 0144-3577

Article publication date: 19 June 2008

Abstract

Purpose

The adoption of the ISO 9001 Quality Management Systems Standard has proven to be a persistent and growing phenomenon in services and manufacturing, yet to date little research has been done that can indicate how far improved business performance can be attributed to it rather than counter‐intuitive causes. The paper aims to examine the evidence for the causal links between quality management system certification and improved performance in the empirical literature.

Design/methodology/approach

A method is proposed for testing how far performance improvement can be attributed to quality management system certification and how far attribution to other causes applies. This method is illustrated on a longitudinal study and then utilised to interpret the findings of other longitudinal studies.

Findings

It is concluded that although there is some evidence to indicate that quality management system certification has some causal influence on business performance, there is also evidence for the existence of a substantial mechanism whereby better performing firms self‐select to adopt certification. Possible causes for this mechanism are discussed.

Research limitations/implications

The existence of a self‐select mechanism has profound implications for interpreting business performance achievements associated with quality management system certification because the benefits found may well be inflated by its presence. The authors suggest that richer theory is needed that can incorporate bi‐directional influences and new research is needed to explore the underlying causes of adoption selection effects.

Originality/value

The paper provides researchers with a method for testing and discussing causation influences on results. It provides evidence that a substantial part of the association found in the research on quality management system certification and business benefits may be due to counterintuitive causes.

Keywords

Citation

Dick, G.P.M., Heras, I. and Casadesús, M. (2008), "Shedding light on causation between ISO 9001 and improved business performance", International Journal of Operations & Production Management, Vol. 28 No. 7, pp. 687-708. https://doi.org/10.1108/01443570810881811

Publisher

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Emerald Group Publishing Limited

Copyright © 2008, Emerald Group Publishing Limited