The encyclopedia · Strategy & Leadership · Strategic decision · 2000–2005
Brazil's pregão eletrônico cut state buying time and prices with online reverse auctions
ComprasNet lets 150,000 suppliers bid prices down in real time; average savings near 20%, and a tender that took months now ends in weeks.
Brazilian federal government (ComprasNet)
the move
Brazilian federal purchasing was slow and closed: a normal tender took more than two months, and prices were set by negotiation and paperwork. The federal government built ComprasNet, an e-procurement portal, and introduced the online reverse auction (pregão eletrônico) for goods and non-consulting services.
The mechanism reverses the usual auction: the buyer posts the requirement, suppliers log in and bid, and prices fall in real time until the auction closes. A purchase that took over two months can now be completed in under fifteen working days.
Independent assessments put the average price reduction at around 20 percent for goods bought through reverse auction and price quoting, with more than 150,000 registered suppliers, and the first two years of online reverse auctions saved the federal government up to US$1.5 million on top of faster, more transparent buying.
By 2015-17 pregão eletrônico had become the federal government's most-used competitive method — a World Bank study counted 112 million bids for 0.9 million items in three years and found that small design tweaks to the random closing rule could save another R$540 million a year.
why it works
- Real-time bidding reveals the market price instead of guessing it in paperwork.
- Public transparency makes collusion and favoritism far harder to hide.
- The process is faster, so more of what the state buys goes through competition.
- Its scale made even small design improvements worth hundreds of millions.
what transfers
Opaque purchasing hides the market price; a public reverse auction forces suppliers to compete it into the open — and transparency is what makes the low price stick.
what came after
Pregão eletrônico became the default federal procurement mode and spread to states and municipalities; the World Bank's random-closing study shows the design still being tuned for efficiency. ComprasNet also became a reference for e-government procurement across Latin America.
references
- Brazil e-Procurement: Pregão (Online Reverse Auction)
- Auction Length and Prices: Evidence from Random Auction Closing in Brazil (World Bank Policy Research Working Paper 8828)
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