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Net Promoter Score® Research: the “for” and “against” list

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Over the past few years, I have come across all sorts of research on Net Promoter Score.  Some of it positive and some of it negative, but never in the same place or easy to access.  Typically, organisations only link to the research that supports their case.

So I thought that it would be a good idea to provide a list of all the Net Promoter Score research in one place.  This list is targeted at what I would call primary research that adds to the body of knowledge of the efficacy of the Net Promoter® approach.   I am not planning to add links to general commentary on NPS®.

If you have or know of relevant research that is not noted here, please let me know in a comment and I’ll add it in.

“For” research

  1. The One number you need to Grow – the original paper by Fred Reichheld
  2. The Ultimate Question: Driving Good Profits and True Growth – the most well know book by Fred Reichheld
  3. The Power Behind a Single Number – from Satmetrix
  4. Advocacy Drives Growth – Research from the London School of Economics.
  5. Concept and Application of the Net Promoter® Score in Practice – in German
  6. Net Promoter Score: A Number for Business to Grow By — taking the next step to action
  7. Using the Power of Customer Follow-up to Reduce Churn and Improve Customer Value — see page 23 for a great chart.  Thank you to Federico Cesconi.
  8. Scoring Success by David Whitlark and Gary Rhoads, 2011 — “Net promoter score is a leading indicator of revenue growth,” see paper for more details.
  9. Net Promoter Score is 2.7 times more sensitive than Customer Satisfaction — analysis that we (Genroe) performed in2011.
  10. High Correlation between Net Promoter Score and the Development of Consumers’ Willingness to Pay — academic paper on the link between NPS and Willingness to Pay.
  11. The predictive ability of different customer feedback metrics for retention – an academic paper with good credentials that looks at different customer feedback metrics.

“Against” research

  1. A Longitudinal Examination of Net Promoter and Firm Revenue Growth Statistics
  2. Linking Customer Loyalty to Growth – similar base research and authors to 1. above but published in MIT Sloan Management Review.
  3. Measurement Deficiencies in the Net Promoter Score – It’s against my own rules from above but I have done a response on this paper: Net Promoter Score: Deficient or Efficient measure?

General research

  1. Measuring Customer Satisfaction and Loyalty: Improving the ‘Net-Promoter’ Score – a paper on ways to potentially improve the NPS scoring approach.
  2. The Value of Different Customer Satisfaction and Loyalty Metrics in Predicting Business Performance — a general examination
  3. New Insights: Net Promoter Score Vs Customer Satisfaction – primary research that a client of ours was kind enough to let us share.
  4. Recommender Systems: We’re doing it (all) wrong – good background on recommend questions and interval vs ordinal data.
  5. Identification of Key Drivers of Net Promoter Score Using a Statistical Classification Model – an approach to identifying the drivers of NPS

Thanks

Also, just want to thank a few people who have helped me compile this list: Tim Tyler,  John Varcoe, Gary Rhoads and Adam Dorrell.

I've created a Business Leaders’ Practical Guide to Implementing Net Promoter.  Download it Here

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