Template-Type: ReDIF-Paper 1.0 Author-Name: Mojtaba Ghiyasi Author-Name-First: Mojtaba Author-Name-Last: Ghiyasi Author-Workplace-Name: Centre of Health Economics Research, University of Southern Denmark Author-Name: Jens Leth Hougaard Author-Name-First: Jens Leth Author-Name-Last: Hougaard Author-Email: jlh@ifro.ku.dk Author-Workplace-Name: Department of Food and Resource Economics, University of Copenhagen Title: Ranking Production Units According to Marginal Efficiency Contribution Abstract: League tables associated with various forms of service activities from schools to hospitals illustrate the public need for ranking institutions by their productive performance. We present a new method for ranking production units which is based on each units marginal contribution to the technical efficiency of various “mergers” relative to a common reference technology. The approach is radically different from the usual one based on super-efficiency indexes in DEA. We illustrate the mechanics of our method by a series of numerical examples and further demonstrate that our new index inherits all relevant and desirable properties of the Farrell efficiency index upon which it is constructed. Length: 21 pages Creation-Date: 2014-08 File-URL: http://okonomi.foi.dk/workingpapers/MSAPpdf/MSAP2014/MSAP_WP04_2014.pdf File-Format: Application/pdf Number: 04_2014 Keywords: Production units, Ranking, Marginal efficiency contribution, DEA, Super efficiency, Contribution index Handle: RePEc:foi:msapwp:04_2014