We propose and study a unified procedure for variable selection in partially linear models. A new type of double-penalized least squares is formulated, using the smoothing spline to estimate the nonparametric part and applying a shrinkage penalty on parametric components to achieve model...

Does an electricity market which has been restructured to foster competition provide greater opportunities for demand response than a traditional regulated utility industry? The experiences of the restructured Electric Reliability Council of Texas (ERCOT) market over the past eight years provide...

Regression analysis suggests that zonal averages of locational marginal prices under the nodal market are about 2 % lower than the balancing energy prices that would occur under the previous zonal market structure in ERCOT. The estimates for the nodal market price effects are found after...