Evolutionary Dynamics in Bilingual Games

We study the effect of introducing a bilingual option on the medium run and the long run outcomes in a class of two-strategy coordination games with distinct payoff and risk dominant equilibria under various evolutionary dynamics. Existing results show that in the class of two-strategy games under consideration, the inefficient risk dominant equilibrium is uniquely selected under many plausible evolutionary dynamics in the long run. We show that if the cost of the bilingual option is sufficiently low then the efficient payoff dominant equilibrium may be uniquely selected not only in the long run but also in the medium run under plausible evolutionary dynamics.

Links to the seminar recording and the slides.