The design and analysis of electronic commerce systems in which agents are - ployed involves finding solutions to a large and diverse array of problems, concerning individual agent behaviors, interaction, and collective behavior. A wide variety of electronic commerce scenarios and systems, including agent approaches to these, have been studied in recent years. These studies suggest models that support the - sign and the analysis at both the level of the single agent and the level of the multiagent system. th This volume contains revised, selected papers from the 10 Workshop on Agent- Mediated...