在自回归模型中，使用工具变量法，能够在eviews中实现吗？还是必须在SAS中实现，本人从未用过SAS，还请帮助谢谢！：下面是论文的原文：

in creating the instrument for the lagged dependent variable, I included all the other independent varibales for a given year and for one year before it in the regression.