Reverse Auction
A procurement format where suppliers submit successively lower bids in real-time competition; rare in UK public sector for substantive procurement.
Definition
A Reverse Auction is a procurement format where suppliers submit successively lower bids in real-time competition. The "reverse" reflects the inversion of conventional auctions (where buyers bid up) to procurement (where suppliers bid down). Reverse Auctions are used in some private sector procurement and very limited UK public sector contexts where the requirement is well-defined commodity goods or services. They are rare in substantive UK public sector procurement because quality considerations (which weighted ITT evaluations capture) do not transfer well to real-time bidding.
How it works in practice
Reverse Auctions work best where the procurement is genuinely about price: commodity goods with standardised quality (paper, fuel, basic IT hardware), services with defined specifications that all suppliers can deliver equivalently, or call-offs under existing frameworks where quality has already been evaluated at framework award. The auction format compresses pricing decision into a short live competition (typically 30-90 minutes); suppliers see competitive position in real-time and adjust accordingly. Risks include unsustainable pricing as suppliers compete aggressively, undermining of strategic supplier relationships, and reduction of quality where quality is harder to specify than the auction format assumes. UK public sector reverse auctions are mostly limited to specific framework call-off arrangements where the framework has already filtered for quality and the call-off competition is genuinely about price within that filter. The CCS Energy framework includes some reverse auction mechanisms for short-term energy procurement; some commodity goods frameworks use auction formats for specific call-off categories. For most UK public sector procurement weighted ITT evaluation remains the dominant evaluation methodology and reverse auctions are rare.
Common questions
Are Reverse Auctions used in UK public sector?
Rarely for substantive procurement; some use in specific framework call-off arrangements for commodity goods or short-term energy procurement. The format does not fit well with weighted quality and price evaluation that dominates UK public sector procurement.
Why are Reverse Auctions controversial?
They can drive unsustainable pricing as suppliers compete aggressively in real time, undermine strategic supplier relationships where the buyer wants long-term partnership, and reduce quality where quality is harder to specify than the auction format assumes. UK public sector procurement policy generally favours weighted quality and price evaluation that captures the full value-for-money picture.
When does a Reverse Auction work well?
For genuinely commodity procurement where quality is standardised and the substantive decision is about price: commodity goods (fuel, basic IT, paper), services with defined specifications that all suppliers can deliver equivalently, or call-offs under frameworks where quality has already been evaluated at framework award.