Walrasian Equilibrium with Few Buyers

  • Reshef Meir
  • Moshe Tennenholtz
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8768)


We study the existence and the properties of Walrasian equilibrium (WEQ) in combinatorial auctions, under two natural classes of valuation functions. The first class is based on additive capacities or weights, and the second on the influence in a social network. While neither class holds the gross substitutes condition, we show that in both classes the existence of WEQ is guaranteed under certain restrictions, and in particular when there are only two competing buyers.


Social Network Optimal Partition Price Vector Full Version Valuation Function 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Reshef Meir
    • 1
  • Moshe Tennenholtz
    • 2
  1. 1.Harvard UniversityUSA
  2. 2.Microsoft Research and Technion-Israel Institute of TechnologyIsrael

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