Could you tell me where is the response to all those similar questions? If the authors don’t reply, it is reasonable to keep asking. 1:Chinese only use email for business issues, the SI data from the paper ignores the fact that most workers in reception do not have email.And they may could understand and speak easy English, but they could not write a email. Why the author do not use local language and multiple communication ways? It could exclude the language and communication variables.(I realize that non-english speaking country have relatively low scores).2:It is a culture thing that we used to leave the wallet in a certain place, just like japan did. But author just excluded japan off the paper? The truth is, there is no countries in this paper contain a Chinese culture-relative country, it is typical double standards. If you could explain those two questions well, I believe there would be no similar comments at all.