In this article Timothy L. Deiningham, Lerzan Aksoy, Bruce Cooil and Tor Wallin Andreassen look at a growth metric called Net Promoter Score (NPS) and compare to previous results obtained by Fred Reichheld. When conducting the research there seemed to be decent correlation between the NPS and the future growth rates. The NPS didn't have any more of a success rate then any other growth predicting metric. When comparing it with an accepted customer satisfaction metric, the American Customer Satisfaction Index (ACSI), the difference was negligible.
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