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A flexible model for tree-structured multi-commodity markets

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2 Author(s)
Carlsson, P. ; EnerSearch and Uppsala Univ., Malmo, Sweden ; Andersson, A.

In this paper we study tree-structured multicommodity, multi-unit markets. The concept is a way to handle dependencies between commodities on the market in a tractable way. The winner determination problem of a general combinatorial market is well known to be NP-hard. It has been shown that on single-unit single-sided combinatorial auctions with tree-structured bundles the problem can be computed in polynomial time. We show that it is possible to extend this to multi-unit double-sided markets. Further it is possible to handle the commodities of a bundle not only as complements but as perfect substitutes too. Under certain conditions the computation time is still polynomial.

Published in:

E-Commerce Technology, 2005. CEC 2005. Seventh IEEE International Conference on

Date of Conference:

19-22 July 2005