A Trick with Weak Dominance

This lecture looks at a rare time that weak dominance can actually be useful!

Takeaway Points

  1. If your opponent mixes among all her strategies, then playing a weakly dominated strategy produces a strictly worse payoff than playing the strategy that weakly dominates it.
  2. Thus, you could not play the weakly dominated strategy in equilibrium involving such a mixture from your opponent.

Back to Game Theory 101

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