Introduction Editor's Introduction Amy Greenwald i Feature Articles CMieux: Adaptive Strategies for Competitive Supply Chain Trading Michael Benisch, Alberto Sardinha, James Andrews and Norman Sadeh 1 A Reputation Mechanism for Layered Communities Elodie Fourquet, Kate Larson and William Cowan 11 Generating k-Best Solutions to Auction Winner Determination Problems Terence Kelly and Andrew Byde 23 Heuristics for the Deterministic Bidding Problem Amy Greenwald and Victor Naroditskiy 35 ISSN 1551-9031