Jeff Green, the chief executive of the Trade Desk, an ad-technology company in Ventura, Calif., that works with major ad agencies, said the behind-the-scenes fight was fundamental to the nature of the web.
“The internet is answering a question that it’s been wrestling with for decades, which is: How is the internet going to pay for itself?” he said.
The fallout may hurt brands that relied on targeted ads to get people to buy their goods. It may also initially hurt tech giants like Facebook — but not for long. Instead, businesses that can no longer track people but still need to advertise are likely to spend more with the largest tech platforms, which still have the most data on consumers.
David Cohen, chief executive of the Interactive Advertising Bureau, a trade group, said the changes would continue to “drive money and attention to Google, Facebook, Twitter.”
The shifts are complicated by Google’s and Apple’s opposing…