CEEP-BIT WORKING PAPER SERIES

On selecting directions for directional distance functions in a non-parametric framework: A review

Ke Wang
Yujiao Xian 
Chia-Yen Lee
Yi-Ming Wei
 Zhimin Huang

Working Paper 99

Center for Energy and Environmental Policy Research
Beijing Institute of Technology
No.5 Zhongguancun South Street, Haidian District
Beijing 100081
January 2017

This paper can be cited as: Wang K, Xian Y, Lee C-Y, Wei Y-M, Huang Z. 2017. On selecting directions for directional distance functions in a non-parametric framework: A review. CEEP-BIT Working Paper.

We gratefully acknowledge the financial support from the National Natural Science Foundation of China (Grant nos. 71471018, 71521002 and 71642004), the Joint Development Program of Beijing Municipal Commission of Education, the Social Science Foundation of Beijing (Grant No. 16JDGLB013), the National Key R&D Program (Grant No. 2016YFA0602603), and the Ministry of Science and Technology of Taiwan (MOST103-2221-E-006-122-MY3). The views expressed in this paper are solely authors’ own and do not necessarily reflect the views of the supporting agencies and Beijing Institute of Technology. The authors alone are responsible for any remaining deficiencies.

? 2017 by Ke Wang, Yujiao Xian, Chia-Yen Lee, Yi-Ming Wei, and Zhimin Huang. All rights reserved.

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• WP99d.pdf