Definition

1. Noun:
   • A mathematical framework for modeling strategic interaction: Game theory is a branch of applied mathematics and economics that analyzes situations where multiple parties (players) make decisions that affect each other's outcomes. It studies the optimal strategies and likely results in competitive scenarios defined by rules, payoffs, and information availability.

Usage

• Game theory is used to formally study conflict and cooperation between rational decision-makers.
• It provides tools to predict outcomes in situations ranging from simple games to complex economic negotiations and evolutionary biology.

Examples

• Noun:
  • The economist used game theory to model the pricing war between the two companies.
  • Understanding game theory can help in analyzing strategic choices in business and politics.
  • The classic "Prisoner's Dilemma" is a fundamental scenario in game theory.

Advanced Usage

• "to apply game theory": to use the principles of game theory to analyze a situation.
  • We can apply game theory to understand the arms race between the two nations.
• "a game-theory approach/perspective": a way of analyzing a problem using the concepts of game theory.
  • The negotiation was analyzed from a game-theory perspective.

Variants and Related Words

• Game-theoretic (adj): relating to or based on game theory.
  • The paper presents a game-theoretic model of auction behavior.
• Nash equilibrium (n): a key solution concept in game theory where no player can benefit by changing their strategy while the other players keep theirs unchanged.
• Zero-sum game (n): a situation in game theory where one participant's gain is exactly balanced by the losses of other participant(s).

Synonyms

• Theory of games: A less common, full name for the field.
• Strategic decision theory: A descriptive synonym emphasizing the study of strategic choices.

Related Phrases

• "in game-theory terms": expressed using the language and concepts of game theory.
  • We can describe this social interaction in game-theory terms as a coordination game.

Noun

1. (economics) a theory of competition stated in terms of gains and losses among opposing players