Invited Talk -- Multi-Agent-Based Simulation: Why Bother? -- Coalition Emergence -- PartNET++: Simulating Multiple Agent Partnerships Using Dependence Graphs -- Analysing Partner Selection Through Exchange Values -- Theories and Models -- Automatic Tuning of Agent-Based Models Using Genetic Algorithms -- Formal Interpretation and Analysis of Collective Intelligence as Individual Intelligence -- An Artificial Maieutic Approach for Eliciting Experts' Knowledge in Multi-agent Simulations -- Predictability for Autonomous Decision Support -- Applications -- Analyzing Police Patrol Routes by Simulating the Physical Reorganization of Agents -- Agent-Based Geo-simulation to Support Human Planning and Spatial Cognition -- Modeling Non-linear Common-Pool Resource Experiments with Boundedly Rational Agents -- Tax Compliance in a Simulated Heterogeneous Multi-agent Society -- Environments -- Agent Transport Simulation for Dynamic Peer-to-Peer Networks -- Visual Modeling for Complex Agent-Based Simulation Systems.