Rosie Baker

Data is the sweet nectar of loyalty programmes

Rosie Baker

Last week Nectar card overtook Tesco Clubcard in terms of member numbers with 16.8 million versus 15 million, and so it seems fitting that this edition of the Retail Marketing Focus sees the first in a series of articles written by Clive Humby, co-founder of customer insight specialist dunnhumby, the firm that has managed Tesco Clubcard since its inception.