Maria Heim just published a short book on Buddhist ethics, which starts with the problem of the non-existence of ethics in South Asian philosophy in general and in Buddhist philosophy in particular. She then moves to moral reflections within the dimension of Buddhist practice. The book includes a comparison of Buddhaghosa’s and Śāntideva’s teachings and is freely available online until January the 7th. You can download it here.
Thanks for pointing this out, Elisa!
my pleasure!