英语翻译we also reported results for aggregated aid based on the

英语翻译
we also reported results for aggregated aid based on the Within-Groups
and OLS (Ordinary Least Squares) estimators for comparison since the
lagged dependent variable estimate for example that is yielded by the
GMM-systems methodology is largely expected to lie between withingroups
and OLS estimates

因（比如）由高斯混合模型（GMM,Gaussian Mixture Model——译者注）系统方法算出滞后因变量估计值预计很大程度上介于组内估计值与最小二乘法（OLS,Ordinary Least Squares）估计值之间,我们也报告过基于组内估计值、最小二乘法估计值的援助总和以供比较.
又,based on亦可译作建立在...之上.