Media type: E-Article Title: Robust nonparametric frontier estimation in two steps Contributor: Chen, Yining; Torrent, Hudson S.; Ziegelmann, Flavio A. Published: Informa UK Limited, 2023 Published in: Econometric Reviews, 42 (2023) 7, Seite 612-634 Language: English DOI: 10.1080/07474938.2023.2219183 ISSN: 1532-4168; 0747-4938 Keywords: Economics and Econometrics Origination: Footnote: