Text and Data Mining valid from 2018-08-10
Received: 14 May 2018
Accepted: 30 July 2018
First Online: 10 August 2018
Ethics approval and consent to participate
: The present investigation had prior ethical approval by the Sheffield Hallam University School of Business Ethics Committee, ethics reference SBS-695.
: Not applicable.
: The authors declare that they have no competing interests.
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