This paper shows that the correlation between the Net Promoter Score and consumers' Willingness To Pay in five European mobile markets is very strong. The Net Promoter Score is provided by a survey and the Willingness To Pay is calculated using the "Spokes Model" which is an economic model based...

This paper shows that the correlation between the Net Promoter Score and consumers Willingness To Pay in five European mobile markets is very strong. The Net Promoter Score is provided by a survey and the Willingness To Pay is calculated from the “Spokes Model” which is an economic model...