Accepted Manuscript Semiparametric stochastic frontier models: a generalized additive model approach Giancarlo Ferrara, Francesco Vidoli PII: S0377-2217(16)30744-5 DOI: 10.1016/j.ejor.2016.09.008 Reference: EOR 13969 To appear in: European Journal of Operational Research Received date: 11 September 2015 Revised date: 9 August 2016 Accepted date: 6 September 2016 Please cite this article as: Giancarlo Ferrara, Francesco Vidoli, Semiparametric stochastic frontier mod- els: a generalized additive model approach, European Journal of Operational Research (2016), doi: 10.1016/j.ejor.2016.09.008 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.