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A Vickrey auction is a sealed-bid auction where bidders submit bids without knowing the bids of other people. However, as opposed to other sealed-bid auctions, the price paid is the second-highest bid price and not the winning bid price. The Vickrey auction was named after William Vickrey, a Canadian who won the 1996 Nobel Prize in Economics for his research on asymmetric information in economics.
In a Vickrey auction, the individual is bidding their true value and are not trying to assess what everyone else is going to bid. Therefore, in a Vickrey auction, the individual is bidding the maximum amount they are willing to pay and are not disadvantaged by it.
By utilizing the second-price mechanism in a Vickrey auction, individuals bid truthfully – individuals are motivated to bid their maximum value because the individual understands that if their bid wins, they will only need to pay the second-highest bid value.