Only own-price electricity elasticity in the paper; it is the headline residential electricity price result the abstract/conclusion highlight as inelastic || 'the demand for the main sources (electricity, LPG, and kerosene) is both price and income inelastic' (p.227); 'the price coefficient is significant for kerosene and for electricity; in both cases it is less than 1. This suggests price inelasticity' (p.226)
Ramcharran, H. (1988): “Residential Demand for Energy in Jamaica.” Energy Economics 10(3), 223-228