“…With regard to formal institutions, country level corporate governance, corporate transparency, rule of law [8], regulatory quality, government effectiveness and political stability are all important determinants of R&D investment (Acharya and Subramanian, 2009;Xiao, 2013;Seitz and Watzinger, 2017;Brown et al, 2017;Brown and Martinsson, 2018;Alam et al, 2019Alam et al, , 2020. Regarding informal institutions, culture, language and competition from unregistered firms are all important determinants of R&D investment (Lewellyn and Bao, 2015;P erez et al, 2018, 2019Chi et al, 2020;Yan et al, 2020).…”