Halo effective bias b_hm computed with Eq. (10) at z = 0. Left panel: Bias as a function of the halo peak height; the points denote the mean bias in different ν bins, and the error bars denote the standard error of the mean in each bin. The dotted line shows the prediction of Tinker et al. (2010). Right panel: Halo bias b_hm as a function of the halo virial mass. In both cases, the contours indicate a region of an equal number of tracers N_H.