Commentary·Advertising. BYMark Penn. Mark Penn is chairman of the Harris Poll and CEO of Stagwell, a marketing and communications group with over $2 billion in annual revenue.. © 2024 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information. FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.
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