Relative difference between the bias measured in halo catalogs and the bias predicted by the PBS model of Eq. (16) at different red-shifts in the range z ∊ [0, 2], Results refer to simulations carried out for the C0 cosmology. In each panel, blue and red lines refer to the results obtained for the halo catalogs based on the application of ROCKSTAR and SUBFIND, respectively. For the ROCKSTAR catalogs, we also show the standard error of the mean using other 19 realizations of the same cosmology.