2016
DOI: 10.1108/ijopm-11-2014-0540
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The financial impact of a withdrawn ISO 9001 certificate

Abstract: Purpose -The purpose of this paper is to assess to what extent the loss of the ISO 9001 certification affects the decertified firms' financial performance.Design/methodology/approach -Using standard event-study methods, this paper matches a sample of 143 Portuguese companies that lost their ISO 9001 certification with similar nonevent counterpart firms (according to return-on-assets and size) and compares the performance of these two groups of firms using financial data collected from the AMADEUS database.Find… Show more

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Cited by 60 publications
(68 citation statements)
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“…This study employs the event study and control methodology to examine the impact of ISO 14001 on market performances of the certified firms, as proposed in a seminal work of Barber and Lyon (1996). This methodology has been extensively used by prior studies to investigate the financial performances of ISO standards (Corbett et al 2005;De Jong et al 2014;Candido et al 2016). This methodology can be used to compare the performances of the firms certified with the ISO 14001 standard with the firms without certification.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…This study employs the event study and control methodology to examine the impact of ISO 14001 on market performances of the certified firms, as proposed in a seminal work of Barber and Lyon (1996). This methodology has been extensively used by prior studies to investigate the financial performances of ISO standards (Corbett et al 2005;De Jong et al 2014;Candido et al 2016). This methodology can be used to compare the performances of the firms certified with the ISO 14001 standard with the firms without certification.…”
Section: Methodsmentioning
confidence: 99%
“…Prior researches identified previous performance and size of the firm as important factors that affect a company's performance (Carhart 1997;Fama and French 1996). Following prior literature (De Jong et al 2014;Candido et al 2016;Corbett et al 2005), we used ROA and total assets as control variables. The second problem associated with event study methodology is the cross-sectional dependency caused by overlapping time periods among the sample firms while evaluating long-term performance variables.…”
mentioning
confidence: 99%
“…A well-known proxy used in measuring operating performance is return on assets (ROA) [70,[86][87][88]. This financial indicator is defined as the capacity of all the assets, which are used by a company in operating activities, to generate future economic benefits [89] and is calculated as a ratio between operating income and total assets [87].…”
Section: Hypothesis Developmentmentioning
confidence: 99%
“…However, more recently, a new topic has emerged based on the stagnation of ISO 9001 certification expansion in recent years (ISO, 2014). Thus, the issue of ISO 9001 withdrawal or decertification phenomenon, remains under researched and the impact of decertification on financial performance needs to be further investigated (Cândido, Coelho and Peixinho, 2016).…”
Section: Literature Reviewmentioning
confidence: 99%