midGame Theory
What is incomplete information game?
Updated May 16, 2026
Short answer
A game with incomplete information is one where players do not know all payoff-relevant details.
Deep explanation
Players may not know opponent payoffs, types, or preferences. They form beliefs and use Bayesian reasoning to make decisions.
Real-world example
Used in online bidding where valuations are private.
Common mistakes
- Assuming all players have full transparency.
Follow-up questions
- What is private information?
- What is belief updating?