Meaning
Resale pricing models in media buying allow advertising agencies to purchase ad inventory as principal entities and resell it to clients at negotiated prices. Agency principal-based buying markups represent the spread between the wholesale inventory cost secured by the agency and the retail price billed to the advertiser. This commercial structure transfers inventory risk from the publisher to the buying entity while eliminating traditional commission transparency.
The application ends when media contracts mandate full pass-through transparency and agent-of-record status.
Position Ownership
Position ownership requires agencies to commit capital and assume financial risk for unsold media inventory. Agencies purchase bulk inventory upfront to secure volume discounts across publisher networks. Capital exposure justifies the retention of profit margins on resold advertising slots.
Margin Spread
Margin calculations depend on market demand and undisclosed inventory acquisition costs. Agencies package inventory into proprietary bundles, obscuring individual publisher unit costs from client audits. Opaque pricing structures generate variable profit margins across client billing cycles.
Master Provision
Master service agreements define whether media purchasing operates under principal or agent structures. Contracts specify audit rights, rebate allocations, tax treatment, and disclosure mandates for non-transparent inventory trades. Transparent contracts prevent undisclosed markups on client media budgets.