Authors explicitly call the size-dependent-tariff estimates the "more reliable" ones (Table 7 pooled -0.41; Table 8 FE -0.32) and endorse the -0.3 to -0.4 level as their conclusion, with the Permskaya firm-specific-price estimate (Table 9, -0.41) presented as "more support for this result"; the translog E_EE (900132, -0.30) is offered only as "generally consistent with our previous findings" (p. 18), i.e. a consistency check rather than a headline. || "These results are close to the previous ones obtained on pooled data and allow us to suggest the level of elasticity of electricity demand of Russian industrial sector to be around -0.3 - -0.4." (p. 13, printed = PDF p. 13)
Egorova, S., & Volchkova, N. (2004): 'Sectoral and regional analysis of industrial electricity demand in Russia.' New Economic School working paper.