This book constitutes the proceedings of the 18th
International Conference on Principles and Practice of Multi-Agent Systems,
PRIMA 2015, held in Bertinoro, Italy, in October 2015.



The 29 full papers and 24 short papers presented in this
volume were carefully reviewed and selected from 94 submissions. The conference
brings together active researchers, developers and practitioners from both
academia and industry to showcase, share and promote research in several
domains, ranging from foundations of agent theory and engineering aspects of
agent systems, to emerging interdisciplinary areas of agent-based research.