Figure 1

Reddit data set. Linear behavior of \((D^{*}_{t,h})\) and \((D_{t,h})\) along time, for \(h=1,2\), in \(\log _{10}-\log _{10}\) scale. The dashed lines are obtained by a least square interpolation. The goodness of fit \(R^2\) index is 0.9984. The estimated common slop is \({\widehat{\gamma }}^*=0.781\).