Net Promoter Score (NPS) was once celebrated as the universal metric for customer loyalty. One simple question—How likely are you to recommend us to a friend?—promised to predict growth, retention, and long-term business success.
But in reality, customers make recommendations for complex reasons that a single number can’t capture. A business can score high on NPS and still fail to grow, or score average and expand rapidly. This article explores why NPS falls short, why companies continue to rely on it, and how the newer “Earned Growth Rate” metric addresses those shortcomings.
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