Authors confine attention to the three coherency-passing sectors (meatpacking, bakeries, metal products) and choose bakeries as the sector that 'seems to fit the model best'; the non-homothetic model (Table 3A) is their preferred generalization, and coherency is accepted for bakeries (LR=0.00) so constrained=unconstrained electricity own-price = -1.36 (.181) || 'the bakery industry, which we choose because it seems to fit the model best' (p.16) ; 'It appears that bakeries are very responsive to changes in the relative prices of alternative fuels' (p.23)
Guo, C., and J. R. Tybout (1994): “How Relative Prices Affect Fuel Use Patterns in Manufacturing: Plant Level Evidence from Chile.” Policy Research Working Paper 1297, World Bank, Washington, D.C.