Foundations -- Conjectures, Refutations and Discoveries: Incorporating New Knowledge in Models of Belief and Choice under Uncertainty -- When an Event Makes a Difference -- Countable Additivity and the Foundations of Bayesian Statistics -- On the Quantification and Decomposition of Uncertainty -- The Importance of Representational Tools in Understanding Behaviour Under Uncertainty and Risk -- Preference for Diversification with Similarity Considerations -- Uncertainty Improves the Second-Best -- Lorenz Meets Rating but Misses Valuation -- A Deeper Look at Hyperbolic Discounting -- The Assessment of Several Alternative Decision Rules -- “Take-the-Best” and Other Simple Strategies: Why and When They Work “Well” with Binary Cues -- On Generalized Secretary Problems -- Voting on Alternatives or on Criteria? The Meta-Decision on Group Decision Procedures -- Models of Risk Attitude Modelling and Methodological Issues -- Probabilistic Risk Analysis Versus Decision Analysis: Similarities, Differences and Illustrations -- A Conjoint Measurement Based Rationale for Inducing Preferences -- Active Search for Probability Information and Recall Performance: Is Probability an Outstanding Element in the Mental Representation of Risky Decisions? -- Evolutionary Analysis of Risk Attitudes in Competitive Bidding Environments Using Simulation -- Behavior in Risky Decisions: Focus on Risk Defusing.