Figure 1.

Individual case: Time evolution of, from the top to the bottom, the benefit Π(t) of Equation (6), the variable K(t) of Equation (8) and the mean field x(t) of Equation (5). We adopted the values: T = 1.5, χ = 4, M = 100.

Individual case: Time evolution of, from the top to the bottom, the benefit Π(t) of Equation (6), the variable K(t) of Equation (8) and the mean field x(t) of Equation (5). We adopted the values: T = 1.5, χ = 4, M = 100.