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Six Sigma Methodology: Is It a Success Factor for Companies?

Author

Listed:
  • Wendel Alex Castro Silva
  • Luciano de Oliveira Fuscaldi Neves
  • Andréia de Oliveira Santos

Abstract

This paper presents an analysis of the economic performance and profitability of companies using the Six Sigma methodology. Of the 425 Brazilian companies currently on the open market, 93 use Six Sigma. The companies were first categorised by their sectors, according to how they are classified on the capital market, and then, by their size according to the Brazilian Development Bank. The results in recent years (2011–2013) of companies that use Six Sigma were compared to the results of those that do not, based on a statistical inference test of the differences between the two populations, with unknown standard deviations and a confidence interval established at the 95% level. The findings show that, in nine sectors, the Six Sigma methodology contributes to the optimisation of processes and economic performance.

Suggested Citation

  • Wendel Alex Castro Silva & Luciano de Oliveira Fuscaldi Neves & Andréia de Oliveira Santos, 2017. "Six Sigma Methodology: Is It a Success Factor for Companies?," International Business Research, Canadian Center of Science and Education, vol. 10(5), pages 179-188, May.
    • Handle: RePEc:ibn:ibrjnl:v:10:y:2017:i:5:p:179-188
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    References listed on IDEAS

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    1. Ho, Ying-Chin & Chang, Ou-Chuan & Wang, Wen-Bo, 2008. "An empirical study of key success factors for Six Sigma Green Belt projects at an Asian MRO company," Journal of Air Transport Management, Elsevier, vol. 14(5), pages 263-269.
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    More about this item

    Keywords

    six sigmas; economic performance; profitability;
    All these keywords.

    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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