Combining Probability with Qualitative Degree-of-Certainty Metrics in Assessment

Casey Helgeson, Richard Bradley and Brian Hill ()
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Casey Helgeson: London School of Economics & Political Science (LSE)
Richard Bradley: London School of Economics & Political Science (LSE) - Department of Philosophy
Brian Hill: HEC Paris - Economics & Decision Sciences; CNRS

No 1298, HEC Research Papers Series from HEC Paris

Abstract: Reports of the Intergovernmental Panel on Climate Change (IPCC) employ an evolving framework of calibrated language for assessing and communicating degrees of certainty in findings. A persistent challenge for this framework has been ambiguity in the relationship between multiple degree-of-certainty metrics. We aim to clarify the relationship between the likelihood and confidence metrics used in the Fifth Assessment Report (2013), with benefits for mathematical consistency among multiple findings and for usability in downstream modeling and decision analysis. We discuss how our proposal meshes with current and proposed practice in IPCC uncertainty assessment.

Keywords: confidence; uncertainty reporting; climate change (search for similar items in EconPapers)
JEL-codes: D81 (search for similar items in EconPapers)
Pages: 11 pages
Date: 2018-01-17
New Economics Papers: this item is included in nep-ene, nep-env and nep-upt
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Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:ebg:heccah:1298

DOI: 10.2139/ssrn.3177022

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