Net promoter score

Market research metric

Net promoter score (NPS) is a market research metric that is based on a single survey question asking respondents to rate the likelihood that they would recommend a company, product, or a service to a friend or colleague. The NPS is a proprietary instrument developed by Fred Reichheld, who owns the registered NPS trademark in conjunction with Bain & Company and Satmetrix. Its popularity and broad use have been attributed to its simplicity and transparent methodology. The NPS is typically interpreted and used as an indicator of customer loyalty. In some cases, it has been argued to correlate with revenue growth relative to competitors within an industry, although it has also been demonstrated that NPS scores vary substantially between industries. NPS has been widely adopted by Fortune 500 companies and other organizations. Proponents of the Net Promoter approach claim the score can be used to motivate an organization to become more focused on improving products and services. A variation on NPS is Employee Net Promoter Score (eNPS), a measure of staff feelings about their workplace.

The origins of NPS date to a 2003 Harvard Business Review article by Reichheld titled "The One Number You Need To Grow". For some industries, in particular annuity based business to business software and services, it has been shown that Detractors tend to remain with a company, while Passives are more likely to leave. The use of the NPS score in addition to revenue retention rates and customer retention rates may offer valuable customer insights and may offer a better predictibility of customer loyalty rates. As it represents responses to a single survey item, the validity and reliability of any corporation's NPS ultimately depend on collecting a large number of ratings from individual human users. However, market research surveys are typically distributed by email, and response rates to such surveys have been declining steadily in recent years. In the face of criticism of the net promoter score, the proponents of the net promoter approach claim that the "recommend" question is of similar predictive power to other metrics, but that it presents a number of practical benefits to other more complex metrics. NPS scores definitionally range from 100 to +100.

While the net promoter score has gained popularity among business executives and is considered a widely used instrument for measuring customer loyalty in practice, it has also generated controversy in academic and market research circles. Other researchers have noted that there is no empirical evidence that the "likelihood to recommend" question is a better predictor of business growth than other customer loyalty questions (e. g., overall satisfaction, likelihood to purchase again, etc. ), and that the "likelihood to recommend" question does not measure anything different from other conventional loyalty related questions.