Amazon's top ecommerce competitor, eBay, announced today that it would be doing the same thing. eBay head of digital display Stephen Howard-Sarin even said that user data will exist "for the benefit of other marketers who want to reach shoppers."
He continued, "It would be shortsighted of us to give [that data] away."
Howard-Sarin was at AdExchanger's Programmatic I/O conference in San Francisco when he made the announcement.
"If you're an agency and it complicates your life because we've got a unique pool of data that you don't have, tough."
This is a bold statement to marketers that are frustrated at the prospect of ecommerce platforms as arbiters of their media purchases. But it is a wise move by eBay if they wish to remain competitive with Amazon — and it is becoming increasingly clear that this is their motive.
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