Long-run price elasticity is the paper's headline estimate, stated in abstract and conclusions || 'the residential demand for electricity is price inelastic (long-run price coefficient: -0.41)' (p.331); 'the value of price elasticity is equal to -0.41' (p.332)
Hondroyiannis, G. (2004): "Estimating residential demand for electricity in Greece." Energy Economics, 26(3), 319–334