Table 5.

Articles published by type of study

Sources	References	Articles
Conceptual/Theoretical	Ahmed (2015), Hu et al. (2015), Ittmann (2015), Bellomo et al. (2016), Collins et al. (2016), Goswami and Kumar (2016), Ofli et al. (2016), Stickley et al. (2016), Angraal et al. (2017), Erdelj et al. (2017), Latif et al. (2017), Li and Li (2017), Novaro Mascarello and Quaglioti (2018), Ray et al. (2017), Bidgoli (2018), Jumbert (2018), Kiss-Leizer and Karoly (2018), Poblet et al. (2018), Swaminathan et al. (2018), Dash et al. (2019), Ha et al. (2019), Jeble et al. (2019), Khan et al. (2019), Nawari and Ravindran (2019), Sakurai and Murayama (2019), Tanzi and Isnard (2019)	26 (24%)
Empirical (Qualitative)	D’Haene et al. (2015), Wang et al. (2015), Mulder et al. (2016), Alamdar et al. (2017), Clark (2017), Delmonteil and Rancourt (2017), Lai (2017), Burns (2018), Pransky (2018), Prasad et al. (2018), Elbanna et al. (2019)	11 (10%)
Empirical (Quantitative)	Hu and Kapucu (2016), Kabra and Ramesh (2016), Haddud et al. (2017), Kabra and Ramesh (2017), Papadopoulos et al. (2017), Dubey et al. (2018), Bhuvana and Arul Aram (2019), Dubey et al. (2019), Dubey et al. (2019b), Dubey et al. (2019c), Dubey et al. (2019a), Dwiputranti et al. (2019), Sinha et al. (2019), Dubey et al. (2020a)	11 (10%)
Literature Reviews	Tatham et al. (2015), Erdelj et al. (2017), Mishra et al. (2017), Brinch (2018), Giordan et al. (2018), Kamel Boulos et al. (2018), Mishra et al. (2018), Otto et al. (2018), Yu et al. (2018), Zheng et al. (2018), Akter and Fosso Wamba (2019), Behl and Dutta (2019), Gupta et al. (2019), Jorge et al. (2019), Shakhatreh et al. (2019)	15 (14%)
Mixed Methods	Bjerge et al. (2016), Cinnamon et al. (2016), Drosio and Stanek (2016), Granell and Ostermann (2016), Landwehr et al. (2016), Schniederjans et al. (2016), Demir et al. (2017), Angeles (2018)	8 (7%)
Technical Development/Experimental	Bogue (2016), Chung and Park (2016), Denis et al. (2016), Grabowski et al. (2016), Li et al. (2016), Merwaday et al. (2016), Nedjati et al. (2016), Sanchez-Garcia et al. (2016), Sebillo et al. (2016), Chowdhury et al. (2017), Croatti et al. (2017), Golabi et al. (2017), Horita et al. (2017), Kim et al. (2017), Kiss Leizer and Tokody (2017), Li et al. (2017), Madhavaram et al. (2017), Tatham et al. (2017), Abedin and Babar (2018), Ahn et al. (2018), Ghapar et al. (2018), Hu et al. (2018), Rabta et al. (2018), Ragini et al. (2018), Rego et al, (2018), Savonen et al. (2018), Xu et al. (2018), Xu et al. (2018), Bravo et al. (2019), Ejaz et al. (2019), Griffith et al. (2019), Jang and Woo (2019), Kumagai et al. (2019), Kwok et al. (2019), Li et al. (2019), Liu and Wang (2019), Shavarani (2019), Tadokoro et al. (2019), Usuda et al. (2019), Zhao et al. (2019)	39 (36%)
Total number of articles		110