Full FEM with technology progress (model 4) is the authors' most complete fixed-effects specification; F-test/Hausman favor FEM over MM and REM. || 'Based on the results of an F-test and Hausman test, we focus on the estimation results of the stepwise regression of the FEMs (models (1)-(3)).' (p.884, footnote 4) and model (4) adds technology progress (p.885, Table 4)
Fan, J.-L., Hu, J.-W., & Zhang, X. (2019): "Impacts of climate change on electricity demand in China：An empirical estimation based on panel data." Energy, 170, 880-888.