Edward T. Hall presented in his 1976 book Beyond Culture, the terms high-context culture and low-context culture. The key difference between the two is the tendency to use high-context or high-conceptual messages with fewer words, among in-groups who shares similar experiences and backgrounds compared to the low-context societies.
A simple example would be China/Japan/Korea compared to United States. Things are much more implicit, conceptual, intuitive, and are relationships-focused than the idea, discussions, and explicit expressions in the listed Asian countries.
This affects not only how emails are written, how negotiations take place, but to the extent of how companies and brands evolve into greater scale.