Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/18641
Title: Sensitivity of directional technical inefficiency measures to the choice of the direction vector: a simulation study
Author: Macedo, Pedro
Silva, Elvira
Keywords: Directional distance functions
Efficiency analysis
Productivity
Issue Date: 2017
Publisher: Economics Bulletin
Abstract: The purpose of this note is to provide new insights on the sensitivity of technical inefficiency scores, estimated using a directional distance function with small samples and the presence of outliers, to the choice of the direction vector. A simulation study with a geometric illustration is conducted considering several direction vectors. To the best of authors' knowledge, this is the first simulation work comparing 16 direction vectors, some of which are often employed in empirical studies. The four directional vectors that consistently provide the best results are identified and used in the empirical application discussed in this study.
Peer review: yes
URI: http://hdl.handle.net/10773/18641
ISSN: 1545-2921
Publisher Version: http://www.accessecon.com/Pubs/EB/2017/Volume37/EB-17-V37-I1-P7.pdf
Appears in Collections:CIDMA - Artigos
PSG - Artigos

Files in This Item:
File Description SizeFormat 
PaperEB2017.pdfDocumento principal251.22 kBAdobe PDFView/Open


FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Degois 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.