Opinion | Published:

A route to more tractable expert advice

Nature volume 463, pages 294295 (21 January 2010) | Download Citation

There are mathematically advanced ways to weigh and pool scientific advice. They should be used more to quantify uncertainty and improve decision-making, says Willy Aspinall.

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  1. 1.

    Experts in Uncertainty: Opinion and Subjective Probability in Science (Oxford Univ. Press, 1991).

  2. 2.

    & Proc. 4th Int. Conf. Probabilistic Safety Assessment and Management (eds Mosleh, A. & Bari, R. A.) 3, 2113–2118 (Springer, 1998).

  3. 3.

    , & Reliab. Eng. Syst. Safe. 93, 745–756 (2008).

  4. 4.

    , , & Science 317, 1505–1506 (2007).

  5. 5.

    & Summary Report of the Expert Elicitation Workshop Results for Iatrogenic Prion Disease Risks in Canada (Univ. Ottawa, 2009); available at

  6. 6.

    et al. Not a Sure Thing: Making Regulatory Choices Under Uncertainty (Resouces for the Future, 2006); available at

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Author information


  1. Willy Aspinall is Cabot professor of natural hazards and risk science at Bristol University, Bristol BS8 1RJ, UK. He provides expert elicitation services through his company Aspinall & Associates, Cleveland House, High Street, Tisbury SP3 6HF, UK.  Willy.Aspinall@Bristol.ac.uk

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See Editorial, page 269.

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