Abstract states the sectoral results are more useful than the aggregate, and the paper singles out commercial and agricultural own-price elasticities as the only statistically significant price effects || 'In the case of the demand for electricity by sectors, the results are more useful than for aggregate electricity demand' (p.11-12); 'The only statistically significant effect of electricity prices was found in the commercial and agricultural sectors with elasticities of (-0.57) and (-1.02) respectively' (p.88)
Dahan, A. A. (1996): "Energy Consumption in Yemen: Economics and Policy 1970-1990," Ph.D. Dissertation, Department of Mining and Geology, University of Arizona