South Africa, March 17 -- The Warc Effective 100, an annual ranking of the world's most awarded campaigns and companies for marketing effectiveness, has been published. Providing an independent benchmark for excellence ineffectiveness, it is the last of the three Warc Rankings to be released, following the recently announced Creative 100 and Media 100.

The Effective 100 Ranking is compiled by Warc, the international marketing information company, and is produced by combining the results of the industry's most important global and regional award shows for effectiveness throughout 2019. The awards tracked are determined by the Warc Rankings Advisory Board and a worldwide industry survey.

The most effective campaign of 2019 is It's A Tide ...