The following article has been retracted from publication in the Taylor & Francis journal
International Journal of Systems Science: Operations & Logistics:
Mohsen Khodakarami, Amir Shabani and Reza Farzipoor Saen, Concurrent estimation of efficiency, effectiveness and returns to scale, International Journal of Systems Science: Operations & Logistics, http://dx.doi.org/10.1080/00207721.2014.907943. Version of record published online 16 April 2014.
This article has been retracted before print publication at the request of the author.