| Empirical |
Case study |
3 |
Handfield et al., 2020, Majumdar et al., 2020, van Hoek, 2020
|
| Survey (descriptive statistics) |
3 |
Gurbuz and Ozkan, 2020, Okorie et al., 2020, Veselovská, 2020
|
| Quantitative |
Mathematical model |
6 |
Gupta et al., 2020, Ivanov and Dolgui, 2020b, Kargar et al., 2020, Lozano-Diez et al., 2020, Mehrotra et al., 2020, Paul and Chowdhury, 2020a
|
| Analytical model |
5 |
Choi, 2020a, Govindan et al., 2020, Guan et al., 2020, Paul and Chowdhury, 2020b, Rahman et al., 2021
|
| Simulation |
7 |
Ivanov, 2020a, Ivanov, 2020b, Ivanov and Das, 2020, Ivanov and Dolgui, 2020c, Lozano-Diez et al., 2020, Singh et al., 2020, Zhu and Krikke, 2020
|
| Secondary data analysis |
9 |
Derevyankina and Yankovskaya, 2020, Farias and Araújo, 2020, Gray, 2020, Nikolopoulos et al., 2020, Novak and Loy, 2020, Richards and Rickard, 2020, Sharma et al., 2020a, Sharma et al., 2020b, Siche, 2020
|
| MCDM method |
1 |
Sharma et al. (2020c) |
| Review |
Literature review |
5 |
Ibn-Mohammed et al., 2021, Ivanov and Dolgui, 2020a, Iyengar et al., 2020, Kumar et al., 2020, Rizou et al., 2020
|
| Systematic/structured literature review |
4 |
Golan et al., 2020, Queiroz et al., 2020, Vaio et al., 2020, Yuen et al., 2020
|
| Analytical review |
1 |
Craighead et al. (2020) |
| Researchers’ opinions |
Perspective/opinion piece/commentary/ viewpoint |
25 |
Abhishek et al., 2020, Amankwah-Amoah, 2020a, Armani et al., 2020, Baveja et al., 2020, Cappelli and Cini, 2020, Chiaramonti and Maniatis, 2020, Deaton and Deaton, 2020, Dente and Hashimoto, 2020, Hakovirta and Denuwara, 2020, Hobbs, 2020, Hosseini, 2020, Jabbour et al., 2020; Ketchen and Craighead, 2020, Larrañeta et al., 2020, Leite et al., 2020, Lemke et al., 2020, Quayson et al., 2020, Reardon et al., 2020, Rowan and Laffey, 2020, Sarkis et al., 2020, Shokrani et al., 2020, Xu et al., 2020a, Yu et al., 2020, Yu and Aviso, 2020, Zhu et al., 2020
|
| Conceptual |
2 |
Gunessee and Subramanian, 2020, Mollenkopf et al., 2020
|
| Discussion |
4 |
Deshmukh and Haleem, 2020, Ishida, 2020, Trautrims et al., 2020, van Barneveld et al., 2020
|
