Bayesian Nash Equilibrium

Definition ∞ Bayesian Nash Equilibrium is a concept in game theory where players make optimal decisions based on their beliefs about other players’ types and strategies. Each player’s strategy is a best response to the strategies of other players, considering their private information and probabilistic assessments. This equilibrium applies to games with incomplete information. It predicts rational behavior in uncertain strategic interactions.
Context ∞ In the realm of decentralized finance and blockchain protocol design, understanding Bayesian Nash Equilibrium helps in designing incentive structures for participants. News about new protocol designs or security analyses often references game theory concepts to explain how participants are expected to behave under various conditions, impacting network stability and security. This analytical tool informs robust system architecture.