Johansen/VECM is the authors' primary estimator: 'the cointegration analysis using the Johansen approach was conducted first because it outperforms all its alternatives in correctly determining the number of cointegrated relationships'; headline long-run price elasticity 'found to be around -0.9'; FMOLS explicitly flagged as the outlier. || 'the estimated long-run price elasticity of per capita electricity demand is found to be around -0.9' (p.19); 'the estimated short-run per capita electricity price elasticity is found to be -0.4 for the Johansen, ARDLBT, DOLS and CCR' (p.19)
Hasanov, F., Hunt, L., & Mikayilov, C. (2016): "Modeling and Forecasting Electricity Demand in Azerbaijan Using Cointegration Techniques." Energies, 9(12), 1045.