Author's headline own-price elasticity is the TOTAL INDUSTRY long-run price elasticity = -0.939, foregrounded in text as the summary result for SA industry; NOT in the 15 coded obs (it must be ADDED and marked preferred). || "Our results suggest a price inelastic electricity demand (elasticity = -0.939) for South Africa's industrial sector for the period 1989-2009. This compares favourably with the price elasticity = -0.869 estimated by Ref. [21]." (p.529)
Kohler, M. (2014): "Differential electricity pricing and energy efficiency in South Africa." Energy, 64, 524–532.