Published on in Vol 22, No 4 (2020): April
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/14201, first published
.
1 Institute of Quantitative Economics, Huaqiao University, Xiamen, China
2 Ulster Business School, Ulster University, Newtownabbey, United Kingdom
*all authors contributed equally