How Edwina Dunn and Clive Humby launched the Clubcard

Edwina Dunn and Clive Humby's Clubcard customer loyalty scheme helped secure Tesco's dominance for years.

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Edwina Dunn and Clive Humby Dunnhumby

Most retailers from your supermarket to your local coffee shop now run some sort of loyalty scheme whereby they collect data on you and your shopping habits in return for a small discount. The practice is so widespread now that it's amazing to think that as late as the mid-1990s the idea was seen as revolutionary. The couple most responsible for bringing the concept into the mainstream are husband-and-wife team Edwina Dunn, 57, and Clive Humby, 60.

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Dr Matthew Partridge
Shares editor, MoneyWeek

Matthew graduated from the University of Durham in 2004; he then gained an MSc, followed by a PhD at the London School of Economics.

He has previously written for a wide range of publications, including the Guardian and the Economist, and also helped to run a newsletter on terrorism. He has spent time at Lehman Brothers, Citigroup and the consultancy Lombard Street Research.

Matthew is the author of Superinvestors: Lessons from the greatest investors in history, published by Harriman House, which has been translated into several languages. His second book, Investing Explained: The Accessible Guide to Building an Investment Portfolio, is published by Kogan Page.

As senior writer, he writes the shares and politics & economics pages, as well as weekly Blowing It and Great Frauds in History columns He also writes a fortnightly reviews page and trading tips, as well as regular cover stories and multi-page investment focus features.

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