DOLS is explicitly selected over OLS/FMOLS via Kao-Chiang Monte Carlo evidence ("DOLS model is followed to reach the conclusion"), OLS rows are run "for the purpose of comparison" only; the Conclusion headlines both the homogeneous DOLS (-0.740) and heterogeneous DOLS (-0.664) long-run price elasticities. || "To this end, in this paper, DOLS model is followed to reach the conclusion of the panel estimations." (PDF p. 7); "The homogeneous findings report that the long run elasticities of electricity consumption's own price, fuel oil price and income are -0.740, 0.156 and 0.615, respectively. The heterogeneous DOLS estimations result that own price elasticity, cross price elasticity with respect to fuel oil price, cross price elasticity with respect to natural gas price, and income are -0.664, 0.116, -0.033 and 0.576, respectively." (PDF p. 12; MPRA version has no printed page numbers)
Bilgili, F., Pamuk, Y., & Halici Tuluce, N. S. (2010): 'Short run and long run dynamics of residential electricity consumption: Homogeneous and heterogeneous panel estimations for OECD.' MPRA Paper 33291.