Source: the FTC has been questioning Amazon's competitors about Amazon Prime's bundling of services and how Amazon competes with its own marketplace sellers
Context & Ripple Effects
This 2019 Vox report is the earliest data point in what became a four-year FTC file on Amazon: Jason Del Rey documented regulators asking Amazon's competitors directly about Prime's bundling of services and about how Amazon competes against its own marketplace sellers. Two months later, antitrust experts flagged a related practice — burying items priced lower elsewhere — as likely to draw the same scrutiny (Bloomberg's survey of antitrust experts).
The thread never went cold. By August 2022 Amazon was formally accusing the FTC of harassing Jeff Bezos and Andy Jassy over the Prime membership investigation, and by February 2023 sources described an antitrust lawsuit in preparation with Prime bundling squarely in scope. What this story shows is that the case was built competitor-by-competitor from the start.
First-order effects
- Amazon's retail rivals are compelled to answer federal questions about whether Prime's bundled services lock them out — turning them from silent competitors into evidentiary sources against Amazon.
- Amazon's practice of competing with its own marketplace sellers moves from academic criticism to an active line of inquiry with named investigators behind it.
Second-order effects
- Amazon shifts to a combative legal posture rather than accommodation, culminating in its harassment accusations against the FTC over executive testimony — raising the cost and duration of any settlement path.
- Marketplace sellers face a squeeze from both directions: rising sponsored-placement costs as ads outearn Prime, and heightened regulatory attention to how Amazon treats them — making seller economics the contested ground.
Third-order effects
- If the investigation matures into litigation on bundling and self-preferencing grounds, it would establish that tying a membership program across services and favoring first-party listings are actionable harms — reshaping how hybrid retailer-platforms structure bundles.
- Competitor interviews as a core investigative method would become standard for platform antitrust cases, since rivals hold the only direct evidence of exclusionary effects.
The trend: US antitrust enforcement is shifting from consumer-price tests toward structural theories of harm — bundling and self-preferencing — with the FTC's multi-year Amazon file as the template.