面板单位根检验的matlab代码，基于最小绝对偏差估计的混合自助法的面板单位根检验方法，-panel unit root test matlab code， which is based on the LAD estimation and Hybrid bootstrap

状态模型的极大似然估计，使用EM算法，以及卡尔曼滤波。-This supplementary note discusses the maximum likelihood esti-mation of state space models using Expectation-Maximization (EM) algorithm and bootstrap procedure for statistical inference. A Matlab program scr ipt impleme