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A globally convergent alternating one-track auction for gross substitutes and complements

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  • Song, Siqi
  • Zhang, Chi

Abstract

We propose a new globally convergent dynamic auction for selling multiple indivisible items. There are two finite and disjoint sets of items. Items in each set can be heterogeneous but are substitutes, and items across the two sets are complements. Each bidder may demand several items. In each round of the auction, every bidder reports his demand of items at the current prices and the auctioneer responds by either increasing prices or exclusively decreasing prices. We show that the auction converges globally to a Walrasian equilibrium.

Suggested Citation

  • Song, Siqi & Zhang, Chi, 2025. "A globally convergent alternating one-track auction for gross substitutes and complements," Journal of Mathematical Economics, Elsevier, vol. 118(C).
    • Handle: RePEc:eee:mateco:v:118:y:2025:i:c:s0304406825000199
    DOI: 10.1016/j.jmateco.2025.103102
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    More about this item

    Keywords

    Ascending auction; Descending auction; Double-track auction; Walrasian equilibrium; Gross substitutes and complements;
    All these keywords.

    JEL classification:

    • D44 - Microeconomics - - Market Structure, Pricing, and Design - - - Auctions

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