The parent of dozens of digital marketing, PR, and advertising companies includes the firms Deutsch, McCann, and Weber Shandwick, and has offices in more than 100 countries.
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News about Interpublic Group
Changes in client expectations and internal problems hobbled the company.
Here's what you need to know for the day ahead.
Some of the world's biggest advertisers have put an unprecedented $26 billion in business up for review, setting off an industrywide showdown.