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    Wall's Ice Cream: social media drove nearly half of campaign sales, and almost all of that social effect came from paid advertising, not organic or viral spread.

    Wall's Ice Cream case: social media drove nearly half the campaign's sales, and 99% of that social effect came from paid advertising rather than organic or viral spread.

    Source

    Media in Focus: Marketing Effectiveness in the Digital Era - IPA, in association with Google and Thinkbox (EffWorks) (2017)

    Les Binet (adam&eveDDB) and Peter Field (Peter Field Consulting), IPA Databank

    Wall's IPA paper 2016, cited in Media in Focus

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