Correction to: Palgrave Communications (2017) 3 Article number: 17014 doi:10.1057/palcomms.2017.14; Published 7 Mar 2017; Updated 24 May 2017

The original article did not include a link or reference to the study’s supplementary information file.

The following now appears in the PDF version of the paper:

The article has been corrected online.

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