Table 4 presents the authors' summary computed demand elasticities obtained via a Cochrane-Orcutt correction, stated to be 'better than those obtained with alternative procedures'; the hydraulic-power short-run price elasticity -0.289 is the headline corrected demand elasticity (the raw Table-3 OLS/2SLS hydraulic fits are described as 'poor'). || 'Table 4 presents estimates that were obtained using a Cochrane-Orcutt autocorrelation correction procedure, because they were better than those obtained with alternative procedures.' (p.151); 'The demand for hydraulic energy in both OLS and 2SLS estimations shows a poor fit.' (p.150)
Donatos, G.S., and G.J. Mergos (1989): “Energy Demand in Greece: The Impact of Two Energy Crisis.” Energy Economics 11(2), 147-152