Before revision:  We compute and compare the mean-field equilibrium (MFE) strategy, which assumes individuals acting selfishly to maximize their own utility, to the socially optimal strategy, which is the strategy maximizing the total utility of the population.
After revision:  We compute and compare the mean-field equilibrium (MFE) strategy, which assumes each individual acting selfishly to maximize their own utility, to the socially optimal strategy, which is the strategy maximizing the total utility of the population.