[Gretl-users] Dynamic Panel Model

Just to clarify my understanding of the generation of fitted values for levels of Yt do the estimated coefficients transpose directly into the specified equation Yt=a1 Yt-1+ b1Xt + d +ut (which begs the question of recovery of d ) or if the GUI difference estimator is the default estimator , are the fitted values derived through expansion of the differenced form of the equation with terms collected such that Yt=(1+a1)Yt-1.....etc.?.. *Brian Revell*