b. 1980
Richard Pettigrew is a contemporary British philosopher specializing in formal epistemology and the philosophy of probability. He is best known for developing accuracy-first epistemology, which grounds Bayesian norms such as probabilism and conditionalization in the requirement that credences minimize expected inaccuracy. His work bridges formal epistemology, decision theory, and the foundations of statistics.
Developed accuracy-first epistemology grounding epistemic norms in measures of cognitive accuracy
Authored Accuracy and the Laws of Credence (2016), a systematic treatment of Bayesian epistemology via accuracy
Formal analysis of the Principle of Maximum Entropy as a norm of prior credence
Contributions to the epistemology of imprecise credences and credal risk-aversion
Work on the relationship between evidential probability and subjective Bayesianism