Galaxy linear bias (left panels, b₁) and non linear bias (right panels, b₂) as a function of stellar mass (upper panel) and luminosity (lower panel). Independent measurements obtained on the same subsamples are shown for comparison: from the 2PCF (black points Marulli et al. 2013) and from volume-averaged higher-order correlation functions (grey points Cappi et al. 2015). The values on the x-axis have been slightly offset, for illustrative purposes.