Think tanks and oracles -- Expert opinion in practice -- Probabilistic thinking -- Heuristics and biases -- Building rational consensus -- Savage's normative decision theory -- Relative frequencies and exchangeability -- Elicitation and scoring -- Scoring rules for evaluating and weighing assessments -- Two experiments with calibration and entropy -- Combining expert opinions : review of the literature -- Classical model -- Bayesian model -- Psychological scaling models : paired comparisons -- Applications.
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This volume contains an extensive survey and critical examination of current views on the use of expert opinion in scientific inquiry and policy-making.