[desu_]

I think the implication is that Japanese companies in Japan pay generally less than American companies in Japan, which seems true at least when comparing Japanese and American big names. It's also the case outside engineering/tech. It's fairly common knowledge among Japanese workers and foreign residents living in Japan. One hypothesis (which I like) is that Japanese companies offer a higher non-monetary compensation (I am not talking about flex-time).

[GuiA]

Oh I see. I didn’t get the “American companies in japan” subtext. Yes, that makes sense.