Stellar masses as a function of bar ages. We consider the stellar masses from the S⁴G survey, obtained with the 3.6 μm band (Muñoz-Mateos et al. 2015) and the bar ages derived in this work. We bootstrapped our sample 1000 times to robustly estimate the Pearson correlation coefficient and the p-value, with associated uncertainties. Lastly, we display the mean errors in the bar age and stellar mass estimates (black circle). As discussed in Muñoz-Mateos et al. (2015), the main source of error in the galaxy stellar mass comes from errors in distance estimates, which translate to ±0.32 dex error in mass. Contrary to downsizing predictions, we find no correlation between the two properties, with a weak Pearson coefficient of r=−0.180±0.007 – illustrated by the dotted line.