How companies should treat their most enthusiastic customers

Only a tenth of customers are super-consumers but they account for 30-70% of sales, an even greater share of profits and almost 100% of “customer insights”, says a new book, “Super-Consumers”, written by Eddie Yoon of the Cambridge Group, a consultancy.

http://www.economist.com/news/business-and-finance/21711011-research-shows-firms-ignore-passionate-consumers-their-peril-how-companies-should