An E‑auction, or electronic auction, is a procurement tool conducted online where bidders adjust their offers—typically prices—in real time. In a reverse auction format, suppliers underbid each other, driving the price downward until the auction concludes. This method usually follows an initial evaluation phase and functions as the final competitive stage in procurement to push prices toward market‑competitive levels under transparent conditions.
Within EU procurement guidelines, e-auctions are recognized as a valid tool when an initial evaluation of tenders has taken place. They are permitted under certain procedures like open tenders, restricted procedures, competitive dialogues, framework mini‑competitions, and Dynamic Purchasing Systems. However, EU rules restrict their use in cases where ranking by automatic evaluation is not feasible—such as services requiring intellectual or creative work—and they must not distort competition. Importantly, the intention to conduct an e‑auction must be declared in the original tender notice to ensure procedural transparency.
Used correctly, e‑auctions benefit contracting authorities by achieving price reductions and enhancing competitive pressure, while offering suppliers a fair and dynamic platform. Suppliers must be thoroughly prepared before participating, as e‑auctions allow real‑time responses to competitive actions. Proper design and execution maintain integrity and prevent risks like collusion or unfair advantage, reinforcing a fair and efficient procurement process.
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