Richard Pettigrew is a contemporary analytic philosopher at the University of Bristol specializing in formal epistemology and the foundations of Bayesian reasoning. He is best known for developing accuracy-first epistemology, which grounds epistemic norms in the goal of having accurate credences as measured by scoring rules. His work bridges decision theory, probability theory, and the philosophy of rationality.
Developed accuracy-first epistemology as a systematic foundation for Bayesian norms
Authored Accuracy and the Laws of Credence (2016), a landmark treatment of epistemic utility theory
Defended the principle of maximum entropy as a norm of epistemic caution under uncertainty
Advanced the study of imprecise credences and their role in rational belief
Contributed to the formal grounding of conditionalization and probabilism via epistemic scoring rules