other Mathematical Modeling and Applications of OR Mathematical Modeling and Applications of OR پژوهشی Original <span class="fontstyle0">A branch of researches is devoted to semiparametric and nonparametric estimation<br> of stochastic frontier models to employ the advantages in the operations research<br> technique of data envelopment analysis. The stochastic frontier model is the<br> parametric competition of data envelopment technique. This paper focused on a<br> nonlinear autoregressive stochastic frontier production model that covers dynamic<br> technical inefficiency</span><span class="fontstyle2">. </span><span class="fontstyle0">We consider a semiparametric method for the model &lrm;by<br> combining a parametric regression estimator with a nonparametric adjustment&lrm;. The<br> unknown parameters are estimated using the full maximum likelihood and pairwise<br> composite likelihood methods&lrm;. After the parameters are estimated by parametric<br> methods&lrm; , &lrm; the obtained regression function is adjusted by a nonparametric factor&lrm;, &lrm;and<br> the nonparametric factor is obtained through a natural consideration of the local -<br> fitting criterion&lrm;. &lrm;Some asymptotic and simulation results for the semiparametric<br> method are discussed</span><br style=" font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; " > &nbsp; ‎Technical inefficiency‎, ‎Stochastic frontier models‎ , ‎ Nonparametric adjustment‎, ‎Panel data‎ 59 75 http://iors.ir/journal/browse.php?a_code=A-10-1422-22&slc_lang=other&sid=1 Bahareh Feizi بهاره فیضی feizi.bahareh@yahoo.com 1111111111 1111111111 No University of Mazandaran, Babolsar University of Mazandaran, Babolsar Ahmad Pourdarvish احمد پوردرویش a.pourdarvish@umz.ac.ir 1111111111 1111111111 Yes University of Mazandaran, Babolsar دانشگاه مازندران