%0 Journal Article %J Autonomous Agents & Multi-Agent Systems %D 2009 %T Specifying and Monitoring Economic Environments using Rights and Obligations %A Loizos Michael %A David C. Parkes %A Avi Pfeffer %B Autonomous Agents & Multi-Agent Systems %V 20 %P 158–197 %G eng %U http://econcs.seas.harvard.edu/files/econcs/files/loizos09.pdf