highly significantp < 0.0001
Model 2 Results Model 2 is given by: 4 q it = - 9.7530 2.5982 + 0.0072 0.0003 t + 0.9197 0.0015 q i t - 1 + 0.0501 0.0024 W i t - 1 + 0.0267 0.0041 e Lat i + 38.2003 10.6452 e Long i - 1.1578 0.2894 L a t i + 2.9320 1.0856 Long i + 2.9204 0.6886 ln Lat i + 15.8138 4.8442 ln - Long i + 0.1297 0.0259 L a t i · Long i + 0.0614 0.0278 d p t + 0.0337 0.0248 d p t - 1 + 0.0616 0.0261 d p t - 3 + 0.0043 0.0003 F I i - 4 The coefficient on the deterministic trend, 0.0072, was highly significant ( p < 0.0001), though somewhat smaller than that on initial month of production in Eq. 1 .