What is a Nash Equilibrium?

A Nash equilibrium is a common solution concept used in game theory for non-cooperative (i.e. players cannot work together or communicate), 2+ player games where given all other players' strategy choices, each player can do no better by changing his own strategy. 

Suppose there are two players, A and B, that can choose to play either strategy X or strategy Y.  Player A and Player B both playing strategy X (i.e. A,B: {X,X}) is a Nash Equilibrium if and only if neither player can increase her payoff by deviating to playing Y holding constant the other player's strategy at X.  Note, there can be multiple Nash Equilibria in a game.

RC
Answered by Raees C. Economics tutor

2803 Views

See similar Economics A Level tutors

Related Economics A Level answers

All answers ▸

What is the profit maximising condition? (Hard A-Level question for full marks)


Explain the differences between short run and long run growth


Difference between Comparative advantage and Absolute advantage


Explain why monopolies may be an undesirable form of market structure


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences