The bank put the rise partly down to higher customer numbers and earning more income from sources other than interest on deposits.

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Generating detailed customer histories and profiles once demanded examination of 200 data sources from 30 offices.

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At a minimum, it means that they must re-evaluate the very premises of their customer interactions in order to stay relevant to the new sources of decision-making.

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Being able to ingest and analyze large quantities of big data is essential to discovering these kinds of anomalies, because there are so many different sources of information that could be attached to customer behavior.

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Banks will also tap into new sources of revenue by mining their enormous troves of customer data.

ECONOMIST: Consumer banking

The study was based on our Experience Radar methodology, which helps businesses identify often hidden sources of value that lead to exceptional, differentiating customer experiences.

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