TY - JOUR SP - 457 A1 - Quattrociocchi, Walter A1 - Paolucci, Mario A1 - Conte, Rosaria PB - Inderscience Publishers EP - 471 VL - 5 UR - http://inderscience.metapress.com/content/t43g0348204hm1nv/ IS - 5 KW - informational cheating KW - gossip KW - social evaluation dynamics KW - reputation KW - multi-agent-based simulations KW - beliefs formation KW - image KW - socio-cognitive complex systems KW - false information KW - simulative experiments KW - Repage KW - computational systems KW - communication KW - direct information KW - indirect information KW - unchecked information KW - liars KW - lying KW - quality achievement KW - market scenarios KW - decision making KW - uncertainty KW - contracts KW - beliefs revision KW - knowledge KW - learning AV - none ID - eprints2094 TI - On the effects of informational cheating on social evaluations: image and reputation through gossip Y1 - 2009/// SN - 1741-1009 N2 - Multi-agent-based simulation is an arising scientific trend which is naturally provided of instruments able to cope with complex systems, in particular the socio-cognitive complex systems. In this paper, a simulation-based exploration of the effect of false information on social evaluation formation is presented. We perform simulative experiments on the Repage platform, a computational system allowing agents to communicate and acquire both direct (image) and indirect and unchecked (reputation) information. Informational cheating, when the number of liars becomes substantial, is shown to seriously affect quality achievement obtained through reputation. In the paper, after a brief introduction of the theoretical background, the hypotheses and the market scenario are presented and the simulation results are discussed with respect to the agents? decision-making process, focusing on uncertainty, false information spreading and quality of contracts. JF - International journal of knowledge and learning ER -