Agent-Mediated Electronic Commerce and Trading Agent Design and Analysis AAMAS 2007 Workshop, AMEC 2007, Honolulu, Hawaii, May 14, 2007, and AAAI 2007 Workshop, TADA 2007, Vancouver, Canada, July 23, 2007, Selected and Revised Papers - Collins, John; Faratin, Peyman; Parsons, Simon; Rodriguez-Aguilar, Juan A.; Sadeh, Norman M.; Shehory, Onn; Sklar, Elizabeth (Springer Berlin Heidelberg, 2008)