Author's headline is the asymmetric specification (alpha_max/alpha_rec rows), which the abstract argues dominates || 'We have also constructed a simple energy and economy model to compare future energy demands between the cases with symmetric or asymmetric energy price elasticities. The results show that future energy demand with asymmetric price elasticities is greater than that with symmetric price elasticities' (Abstract, p.17)
Nagata, Y. (2001): “A Forecast of Energy Demand in Japan Considering the Asymmetric Price Elasticities.” Energy Studies Review 10(1), 17-26