Table 1.

Social sustainability innovation criteria from the literature.

Category	Criteria	References
Traditional social sustainability innovation criteria	Utilization of effective policies taking into consideration social indicators	Govindan et al. (2016), Bai et al. (2019)
	Proper reaction to stakeholders’ social pressures	Tariq et al. (2017), Abdel-Basset and Mohamed (2020), Ahmadi et al. (2020)
	Corporate social responsibility initiatives	Gupta et al. (2020)
	Cultural and social principles	Koberg and Longoni (2019)
	Improving the firm's social image	Mani et al. (2018), Mastos et al. (2020)
COVID-19 related social innovation criteria	Safety and health practices as well as wellbeing of suppliers	Gostin and Wiley (2020), Govindan et al. (2020), Remko (2020)
	Skill improvement	Sarkis et al. (2020), Gostin and Wiley (2020)
	Knowledge sharing	Sharma et al. (2020), Majumdar et al. (2020), Govindan et al. (2020)
	Diversified portfolio of suppliers	Majumdar et al. (2020), Govindan et al. (2020)
	Remote working conditions	Sarkis et al. (2020), Govindan et al. (2020), Gostin and Wiley (2020)
	Localization	Sarkis et al. (2020), Govindan et al. (2020), Gostin and Wiley (2020), Remko (2020)