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This study demonstrates that the ganging phenomenon can significantly influence the cross-efficiency evaluation in favour of some DMUs. To overcome this shortcoming, we propose a gangless cross-efficiency evaluation approach. The suggested method reduces the effect of ganging and generates a more diversified list of top performing units. An application to the Tehran stock market is used to show the benefits of gangless cross-evaluation.<\/jats:p>","DOI":"10.1051\/ro\/2018060","type":"journal-article","created":{"date-parts":[[2018,7,10]],"date-time":"2018-07-10T18:44:20Z","timestamp":1531248260000},"page":"645-655","source":"Crossref","is-referenced-by-count":22,"title":["Gangless cross-evaluation in DEA: an application to stock selection"],"prefix":"10.1051","volume":"53","author":[{"given":"Gholam R.","family":"Amin","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amar","family":"Oukil","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"250","published-online":{"date-parts":[[2019,6,13]]},"reference":[{"key":"R1","doi-asserted-by":"crossref","first-page":"516","DOI":"10.1016\/j.ejor.2012.11.034","volume":"226","author":"Alcaraz","year":"2013","journal-title":"Eur. J. Oper. 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