Significance of inclusive electron-nucleus cross sections ratios in the multi-GeV region

Ratios of inclusive electron-nucleus cross sections are studied at incoming electron energies of 1 GeV to 25 GeV and (Bjorken) variable ${\mathit{x}}_{\mathit{B}\mathit{j}}$>1 where many of the present theoretical speculations and the available and forthcoming experimental data are focused on. An alternative analysis which accounts for nuclear target mass effects is proposed.