Authors focus on FE after Hausman rejects RE; urban/rural FE own-price elasticities are the headline || 'the Hausman test rejects the RE assumption. We therefore focus on the FE estimation results, according to which, elasticities are -0.673 for urban areas and -0.897 for rural ones' (p.15)
Silva, S., Soares, I., & Pinho, C. (2018): "Electricity residential demand elasticities: Urban versus rural areas in Portugal." Energy, 144, 627–632. doi:10.1016/j.energy.2017.12.070 