The nine region-specific Table 2 OLS short-run elasticities are the paper's headline finding: their range (0.09-0.30 SR) is quoted in the abstract and conclusion, the Hausman tests (Table 3) "did not indicate any specification errors" so OLS is retained, and pooling across regions is rejected (F-test), so the individual regional estimates - not the panel column - are the authors' finding. || "We estimated the regional power demand functions for nine regions, in order to quantify the elasticity, and found the short-run price elasticity to be 0.09-0.30 and the long-run price elasticity to be 0.12-0.56." (p. 4313, abstract)
Hosoe, N., & Akiyama, S. (2009): 'Regional electric power demand elasticities of Japan's industrial and commercial sectors.' Energy Policy, 37, 4313-4319.