Importance

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Abstract

Methods, systems and data structures are described for conducting buy-buy auctions. A method includes participating in a compound buy-buy auction having contingent bidding on a plurality of heterogeneous items substantially simultaneously contingent on buying one or more other items in another auction. A composite reverse auction, defined by a bid set including a first contingent bid on a first of the plurality of heterogeneous item auctions and a second contingent bid on a second of the plurality of heterogeneous item auctions, is ended when i) the first contingent bid from the bid set is recognized as a winning bid and substantially simultaneously ii) the second contingent bid from the bid set is withdrawn as a remaining bid.

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First Claim