Optimisation and game theory · Maths EE idea · Solid

Mixed strategies and Nash equilibria

A research question to start from

How can mixed-strategy Nash equilibria be found in two-player games, and what do they predict in games such as rock–paper–scissors with unequal payoffs?

A starting point, not your question: change the case, the comparison or the limit until it is yours. The research-question builder helps you check it.

Why it works as a maths EE

An optimisation within probability with clear, checkable answers.

Mathematics you would need

  • Payoff matrices
  • Expected value
  • Indifference conditions
  • Linear equations

Much of this goes beyond the DP course. That is expected in a maths EE, but you must understand and explain everything you use.

One possible line of attack

  1. Define equilibrium and find pure equilibria.
  2. Derive mixed equilibria with indifference conditions.
  3. Analyse a modified game and discuss realism.

Scope and difficulty

Solid. Solid.

Pitfalls

  • Economics essay.
  • Equilibria found by software only.

Where to start reading

Search a library catalogue or a university's open lecture notes for: mixed strategy Nash equilibrium indifference principle; rock paper scissors unequal payoffs. Prefer textbooks, lecture notes and journal articles to a single website, and cite everything you use (how to reference a maths EE).

Make it your EE

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