  We study the equilibrium points of a system of equations corresponding to a
Bass based model that describes the diffusion of two brands in competition. To
increase the understanding of the effects of the cross-brand parameters, we
perform a sensitivity analysis. Finally, we show a comparison with an
agent-based model inspired in the Potts model. Conclusions include that both
models give the same diffusion curves only when the cross coeficients are not
null.
