The commercial/industrial SR estimates (significant at 5%) and their LR twins (Table 3) are the price findings the abstract and conclusions revolve around ("commercial demand is price inelastic"; pricing policies ineffective because LR elasticities also inelastic); the residential price coefficient (row 900243) is explicitly dismissed by the author as wrong-signed and insignificant, so it is not preferred. || "The demand by both categories of commercial and industrial users is price inelastic, and the price coefficients are significant at the 5% level." (p. 68, printed); "The regulation of electricity consumption in the commercial and industrial sector through pricing policies would not be very effective because the long-run price elasticities are also inelastic (Table 3)." (p. 69, printed)
Ramcharran, H. (1990): 'Electricity consumption and economic growth in Jamaica.' Energy Economics, 12(1), 65-70.