1. Regional sustainability efficiency index in Europe: an additive two-stage DEA approach

   • George E. Halkos
   • Nickolaos G. Tzeremes
   • Stavros A. Kourtzidis

   Original Paper 12 February 2015 Pages: 1 - 23

   

2. An optimization method for planning the lines and the operational strategies of waterbuses: the case of Zhoushan city

   • Bin Yu
   • Zixuan Peng
   • Baozhen Yao

   Original Paper 07 February 2015 Pages: 25 - 49

   

3. Green exchange-traded fund performance appraisal using slacks-based DEA models

   • Ioannis E. Tsolas
   • Vincent Charles

   Original Paper 10 February 2015 Pages: 51 - 77

4. A vendor–buyer JELS model with stock-dependent demand and consigned inventory under buyer’s space constraint

   • B. C. Giri
   • S. Bardhan

   Original Paper 17 January 2015 Pages: 79 - 93

   

5. Minimizing total tardiness in the permutation flowshop scheduling problem with minimal and maximal time lags

   • Imen Hamdi
   • Taicir Loukil

   Original Paper 09 December 2014 Pages: 95 - 114

   

6. An integrated DEA-MODM methodology for portfolio optimization

   • Chun-Ying Huang
   • Chuang-Chun Chiou
   • Sheng-Chih Yang

   Original Paper 24 October 2014 Pages: 115 - 136

   

7. Sufficiency and duality for optimization problems involving interval-valued invex functions in parametric form

   • Anurag Jayswal
   • Ioan Stancu-Minasian
   • Andreea Madalina Stancu

   Original Paper 13 March 2015 Pages: 137 - 161