Your intentions are right because the CGP is good as a mediating variable, apart from being a very significant dimension of sustainability practices. This is also related to my PhD thesis. In fact, I just added the CGP as my mediating variable and I have found out a couple of researchers who have also done this, though without national culture. Therefore, we can collaborate on this research effort, if you so wish. My own study is with reference to Nigeria with my dependent variable being sustainability practices which embraces performance that could be any of financial, social or environmental.

Griffin et al talked about the limitations of their respective study, as follows:

"When choosing countries to invest in, there is mixed evidence on the cross-country association between firm-level corporate governance practices and investment performance, calling into question the universalist perspective. More research thus is needed on the complex relation between country-level corporate governance practices and firm-level performance given its important policy implications".

I just agree with Dr. Ahmed, corporate sector has limitations of nation boundaries and evidently in developing countries they still strugling to develop model for integrated development