Brands which place high importance on managing the economic value of their intangible assets, and primarily their brands, consistently outperform basic economic measures.
—Interbrand’s 2007 Best Global Brands Study
Hat tip to the folks at the ANA for highlighting this and providing a succinct overview of the contents. You can also go directly to the Interbrand site and download the PDF for a deeper dive.
Spoiler: The #1 global brand belongs to Coke.