Both the long-run (-0.20, Johansen cointegrating vector eq. 10) and short-run (-0.10, ECM) price elasticities are presented as the paper's twin findings and carried into the "results in perspective" comparison with prior studies and the forecast simulations; no competing specification is offered. || "Our estimates for the short- and long-run price elasticities of −0.10 and −0.20, respectively, are at the bottom of the range of previous estimates." (p. 866, printed; long-run also headlined on p. 865: "results show that the long-run price elasticity of residential electricity demand is −0.20")
Casarin, A. A., & Delfino, M. E. (2011): 'Price freezes, durables, and residential electricity demand. Evidence from Greater Buenos Aires.' Energy Economics, 33, 859-869.