Conducting the initial review returned 724 articles within the Scopus database . Details of these articles ( including title , abstract , author , journal , year of publication ) were downloaded into an Excel file . This initial number of articles was examined for duplication of entries . There were multiple instances where articles contained references to both sustainability and one or both of the other search references . Once duplicates were removed 567 articles remained to be considered for analysis . All 567 articles were downloaded and reviewed to verify that they actually contained the search terms in the appropriate context . Articles were excluded from the data set for several reasons including not actually relating to sustainability ( e.g. content about sustainable competitive advantage ) or containing a general reference to cognitive / cognition without any depth ( e.g. a mention of cognitive bias ) or where the concept was not a key aspect of the article .