Olli Sillari is a contemporary philosopher working in formal epistemology and game theory, with particular focus on the foundations of common knowledge, backward induction, and epistemic models of rational agency. His work examines how differing formal frameworks yield divergent conclusions about rationality in extensive-form games.
Analyzed the divergence between Aumann's and Stalnaker's models of backward induction and rationality
Contributed to the formal epistemology of common knowledge and game-theoretic reasoning
Clarified the role of counterfactual reasoning in epistemic game theory
Published on the interplay between belief revision and rational choice in extensive games